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duct

Definitions

  • WordNet 3.6
    • n duct an enclosed conduit for a fluid
    • n duct a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance "the tear duct was obstructed","the alimentary canal","poison is released through a channel in the snake's fangs"
    • n duct a continuous tube formed by a row of elongated cells lacking intervening end walls
    • ***
Webster's Revised Unabridged Dictionary
    • Duct (Bot) A large, elongated cell, either round or prismatic, usually found associated with woody fiber.
    • Duct Any tube or canal by which a fluid or other substance is conducted or conveyed.
    • Duct Guidance; direction.
    • Duct (Anat) One of the vessels of an animal body by which the products of glandular secretion are conveyed to their destination.
    • ***
Century Dictionary and Cyclopedia
    • n duct Leading; guidance; direction; bearing.
    • n duct Any tube or canal by which a fluid is conducted or conveyed. Specifically— In anatomy, one of the vessels of an animal body by which the blood, chyle, lymph, secretions, etc., are conveyed. See ductus.
    • n duct In bot.:
    • n duct A long continuous vessel or canal, formed by a row of cells which have lost their intervening partitions. The walls are variously marked by pits and by spiral, annular, or reticulated thickenings, and the cavity may be filled with air or water, or they may be lactiferous.
    • n duct In bryology, the narrow continuous cells which surround the utricles in the leaves of Sphagnum.
    • duct To draw: said of muscles which abduct, adduct, or circumduct a part, such as the leg or the eye.
    • ***
Chambers's Twentieth Century Dictionary
    • n Duct dukt a tube conveying fluids in animal bodies or plants.
    • ***

Quotations

  • Carl Zwanzig
    Carl Zwanzig
    “Duct tape is like the force. It has a light side, a dark side, and it holds the universe together.”

Etymology

Webster's Revised Unabridged Dictionary
L. ductus, a leading, conducting, conduit, fr. ducere, ductum, to lead. See Duke, and cf. Douche
Chambers's Twentieth Century Dictionary
L. ductusducĕre, to lead.

Usage

In literature:

The two ejaculatory ducts coming together in the prostate gland open into the urethra.
"The Biology, Physiology and Sociology of Reproduction" by Winfield S. Hall
Along the biliary duct led the road to glory.
"The Atlantic Monthly, Volume 14, No. 85, November, 1864" by Various
No space is so small as to be out of connection with the lymphatics, with their nerves, secretory and excretory ducts.
"Philosophy of Osteopathy" by Andrew T. Still
Working in a dusty or dirty atmosphere is often influential, resulting in a blocking-up of the gland ducts.
"Essentials of Diseases of the Skin" by Henry Weightman Stelwagon
It resembles spruce, but is easily distinguished from it, as well as from pine and larch, by the absence of resin ducts.
"Seasoning of Wood" by Joseph B. Wagner
With reference to the green tissue the foliar duct may be in one of four positions.
"The Genus Pinus" by George Russell Shaw
Offering their urine ducts as a mystic Paradise!
"Fantazius Mallare" by Ben Hecht
These ducts convey the secretion of the testicles into the urethra along which canal it passes to the exterior.
"The Sexual Life of the Child" by Albert Moll
It has numerous ducts, some of which open directly into the mouth, others into the submaxillary duct.
"Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition." by Alexander Miles
Outside in the sunlight his tears dazzled him an instant and sank back into their stinging ducts.
"The Combined Maze" by May Sinclair
Injections made retrograde from the thoracic duct, pass through the villi into the intestines.
"North American Medical and Surgical Journal, Vol. 2, No. 3, July, 1826" by Various
As Steinach has already cut one or both of his genital ducts, that method of stimulating his cells cannot, of course, be repeated.
"The Goat-gland Transplantation" by Sydney B. Flower
CLOSURE OF THE MILK DUCT BY A MEMBRANE.
"Special Report on Diseases of Cattle" by U.S. Department of Agriculture
In the public utilities duct are carried the city's water pipes, cables, telephone and telegraph wires, and gas mains.
"The Industrial Canal and Inner Harbor of New Orleans" by Thomas Ewing Dabney
He shall preside at and con- duct the Grand Council of Centaurs.
"Ku Klux Klan" by J. C. Lester
It had no windows, a single, small ventilating duct, and only one door.
"The Flaming Mountain" by Harold Leland Goodwin
Maybe he's making them develop slowly, and he put the tear ducts in order first.
"Bedside Manner" by William Morrison
He found himself in a small chamber, from which ducts led to all parts of the warren.
"Astounding Stories, August, 1931" by Various
According to Miss N.M. Stevens the so-called oviduct acts only as a "sperm-duct" or receptaculum seminis.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7" by Various
They pass into the thoracic duct and thence into the blood stream.
"Dietetics for Nurses" by Fairfax T. Proudfit
***

In poetry:

Or where some duct, by rolling seasons worn,
Convey'd pure streams to Rome's imperial wall,
Near the wide breach in silence let me mourn,
Or tune my dirges to the water's fall.
"Elegy XVII. He Indulges the Suggestions of Spleen.-- An Elegy to the Winds" by William Shenstone

In news:

About a dozen nurses stood on the Capitol steps Monday morning with red duct tape over their mouths.
Syracuse woman assaulted, hands duct taped during home invasion.
Man says image of Jesus appears in duct tape.
Albuquerque resident Jay Johnson said his daughter spotted the image of Jesus on a piece of duct tape as his family was moving into a new home two years ago.
Duct Tape, Underwear And Pillow Pets: How The Block M Is Generating Millions For The University Of Michigan.
Art Cool Premier Duct -Free System.
AZTV7/Cable 13, Me-TV 7.2, RTV 7.3, Phoenix-Prescott, AZIntegrated LeadGen Results Elevated to Certified Duct Tape Marketing Consultant.
Global Turbine overhauls large exit ducts for PT6A-28 and 34 series PT6A.
Duct Tape Used To Kill Caylee.
A fire crew was called to the scene where a 25-year-old man was stuck in the duct work of the building.
Duct Tape Roll Had Missing Teen And Suspect's DNA On It, Police Say.
Duct tape roll had missing teen and suspect's DNA on it, police say.
Police say a roll of duct tape found in the investigation of 15-year-old Gabrielle Swainson's disappearance had both the teen and her accused kidnapper Freddie Grant's DNA on it.
The PB30 compact pipe bursting system has been specifically designed for the replacement of small diameter sewer laterals and ducts with minimum surface disruption and disturbance to the client.
Glowing duct tape lets you mark what you'll need in the dark.
***

In science:

This simplification is a bypro duct of our attempt to pursue quantum extensions.
An Information-Spectrum Approach to Classical and Quantum Hypothesis Testing for Simple Hypotheses
Figure 5 is a similar figure for a horizontal flow in a duct.
A new construction of perfectly matched layers for the linearized Euler equations
Perfectly matched layer as an absorbing boundary condition for the linearized Euler equations in open and ducted domains. J.
A new construction of perfectly matched layers for the linearized Euler equations
In fact, unless ionization ducting occurs, the waves upon propagation away from the region of their unstable generation will develop a k, and hence an E|| component along B0.
T.I.P.O. (Tesla Interferometric Planetary Observer)
Note that what appears to be a nipple is, in fact, a duct system leading to the nipple, so that the estimators correctly follow the skin line.
Confidence Regions for Means of Random Sets using Oriented Distance Functions
It is interesting bound (cluster type) pro jectiles, that have smaller breakup to note that most of the experiments [26, 27, 28, 29, 30] conthreshold, there is an appreciable probability of breakup ducted in this mass region observed no effect of coupling leading to lowering of fusion probability.
Sub- and above barrier fusion of loosely bound $^6$Li with $^{28}$Si
Finally, we consider inviscid compressible flow in a varying area duct, to which similar ideas apply.
Smooth solutions and singularity formation for the inhomogeneous nonlinear wave equation
Section 6, we consider the consistency of R/C structures, and in Sections 7 and 8, we apply our ideas to one-dimensional transverse flow of MHD and compressible flow in a varying duct.
Smooth solutions and singularity formation for the inhomogeneous nonlinear wave equation
Finally, we consider the compressible Euler flow through a duct of varying cross section a( ˜x).
Smooth solutions and singularity formation for the inhomogeneous nonlinear wave equation
E is the energy, ρ is the density, u is the velocity, p is the pressure and a = a( ˜x) is the diameter of the duct at position ˜x, [3, 4, 11].
Smooth solutions and singularity formation for the inhomogeneous nonlinear wave equation
We prove analogous shock formation results for one-D MHD with orthogonal magnetic field, and for compressible flow in a variable area duct, which has as a special case spherically symmetric three dimensional flow on the exterior of a ball.
Shock formation in the compressible Euler equations and related systems
We show similar gradient blowup results for one-dimensional magnetohydrodynamics (MHD) with orthogonal magnetic field, and compressible flow in a variable area duct.
Shock formation in the compressible Euler equations and related systems
In Section 4, we similarly derive Riccati type equations and present a shock formation theorem for compressible Euler flow in a variable area duct.
Shock formation in the compressible Euler equations and related systems
In this section, we first consider inviscid compressible flow in a duct of varying cross section a(x′ ).
Shock formation in the compressible Euler equations and related systems
The first equation describes the fixed duct, while the others represent conservation of mass, momentum and energy, respectively.
Shock formation in the compressible Euler equations and related systems
***