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parapodium

Definitions

  • WordNet 3.6
    • n parapodium one of a pair of fleshy appendages of a polychete annelid that functions in locomotion and breathing
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Webster's Revised Unabridged Dictionary
    • n Parapodium (Zoöl) One of the lateral appendages of an annelid; -- called also foot tubercle.☞ They may serve for locomotion, respiration, and sensation, and often contain spines or setæ. When well developed, a dorsal part, ornotopodium, and a ventral part, orneuropodium, are distinguished.
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Century Dictionary and Cyclopedia
    • n parapodium One of the unjointed lateral locomotor processes or series of foot-stumps, foot-tubercles, or rudimentary limbs of many worms, as annelids. Parapodia exhibit the greatest diversity in the extent to which they are developed at the sides of the successive segments of annelids, and also in their own sizes and shapes; and each parapodium – that is, the right or left foot-stump of any one segment – may be divisible into a dorsal and a ventral part, the former of which is a notopodium, the latter a neuropodium. The term is generally used in the plural, referring either to the right and left parapodia of any one segment or to the series of successive parapodia. The processes are so called because they are lateral in position, projecting from the sides of the worm. Those anterior ones which lie near the mouth are sometimes specially modified in size, shape, or direction, suggesting the foot-jaws of arthropods. See cuts under præstomium, pygidium, and elytrum.
    • n parapodium [capitalized] In entomology, a genus of hymenopterous insects of the family Crabronidæ, erected by Taschenberg in 1869 for a single species from Venezuela.
    • n parapodium In gastropods, a fin-like expansion of the foot; an epipodium.
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Chambers's Twentieth Century Dictionary
    • n Parapodium par-a-pō′di-um one of the jointless lateral appendages of an annelid
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Etymology

Webster's Revised Unabridged Dictionary
NL., fr. Gr. para` beside +, dim. of foot
Chambers's Twentieth Century Dictionary
Gr. para, beside, pous, podos, a foot.

Usage

In literature:

The parapodium is represented with its neural or ventral surface uppermost.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6" by Various
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