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coxa

Definitions

  • WordNet 3.6
    • n coxa the ball-and-socket joint between the head of the femur and the acetabulum
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Webster's Revised Unabridged Dictionary
    • n Coxa (Zoöl) The first joint of the leg of an insect or crustacean.
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Century Dictionary and Cyclopedia
    • n coxa The femur or thigh-bone.
    • n coxa In anatomy: The hipbone, os coxæ or os innominatum.
    • n coxa The hip-joint.
    • n coxa In entomology, the first or basal joint (sometimes called the hip) of an insect's leg, by which it is articulated to the body. It may be entirely uncovered, as in many flies, or received into a coxal cavity or deep hollow in the lower surface of the thorax, as in most beetles. Coxæ are said to be contiguous when those of a pair are close together, separate when there is a space between them, distant when they are widely separate, prominent when they protrude from the coxal cavities, globose when they are shaped like a ball, transverse when they lie across the body with the succeeding joint of the leg attached to the inner end, etc. These distinctions are of great value in classification. Sometimes the coxa has a small accessory piece called the trochanter, which, however, is not a true joint. Some of the older entomologists included the first two joints of the leg in the term coxa, the first being distinguished as the patella and the second as the trochanter.
    • n coxa The basal joint of the leg of a spider or a crustacean; a coxopodite (which see).
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Etymology

Webster's Revised Unabridged Dictionary
L., the hip

Usage

In literature:

The one next the body we will mark I, and we will call it the coxa.
"The Insect Folk" by Margaret Warner Morley
Legs long, slender, without bristles; fore coxae very long.
"Journal of the Proceedings of the Linnean Society - Vol. 3" by Various
Coxa -ae: the basal segment of the leg, by means of which it is articulated to the body.
"Explanation of Terms Used in Entomology" by John. B. Smith
Tuberculous disease of the hip, morbus coxae, or "hip-joint disease," is especially common in the poorer classes.
"Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition." by Alexander Miles
They consist typically of six segments, of which the basal is termed the coxa and the apical the tarsus.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6" by Various
In all the embryonic or permanent opening is on the coxa of the fifth pair of prosomatic limbs.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3" by Various
The spiracles are very small; coxae unarmed; tarsi without ventral spurs, and the pulvilli are absent or rudimentary.
"Handbook of Medical Entomology" by William Albert Riley
The first of these is called the 'coxa', and is succeeded by a short joint called the 'trochanter'.
"The New Gresham Encyclopedia" by Various
The coxae are flat and not at all prominent.
"Scientific American Supplement, No. 648, June 2, 1888." by Various
Occasionally there is some deformity, as when coxa vara develops.
"Scurvy Past and Present" by Alfred Fabian Hess
In the former movement the foreleg flexes sharply upon itself until the tarsal brush and coxa nearly meet.
"The Behavior of the Honey Bee in Pollen Collection" by D. B. Casteel
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