AMBULACRUM

ambulacrum

(noun) one of the five areas on the undersurface of an echinoderm on which the tube feet are located

Source: WordNet® 3.1


Etymology

Noun

ambulacrum (plural ambulacrums or ambulacra)

(of an echinoderm) A row of pores for the protrusion of appendages such as tube feet.

Source: Wiktionary


Am`bu*la"crum, n.; pl. Ambulacra. Etym: [L., an alley or covered way.] (Zoöl.) (a) One of the radical zones of echinoderms, along which run the principal nerves, blood vessels, and water tubes. These zones usually bear rows of locomotive suckers or tentacles, which protrude from regular pores. In star fishes they occupy the grooves along the under side of the rays. (b) One of the suckers on the feet of mites.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

16 November 2024

LEAVE

(verb) go and leave behind, either intentionally or by neglect or forgetfulness; “She left a mess when she moved out”; “His good luck finally left him”; “her husband left her after 20 years of marriage”; “she wept thinking she had been left behind”


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Coffee Trivia

Coffee has initially been a food – chewed, not sipped. Early African tribes consume coffee by grinding the berries together, adding some animal fat, and rolling the treats into tiny edible energy balls.

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