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Definition of the adjective ambulacral

What does ambulacral mean as an attribute of a noun?


  1. pertaining to the ambulacra of radial echinoderms


Ambulacral is a term typically used in the context of anatomical parts of the phylum Echinodermata or class Asteroidea and Edrioasteroidea. Echinoderms can have ambulacral parts that include ossicles, plates, spines, and suckers. For example, sea stars or "star fish" have an ambulacral groove on their oral side. This ambulacral groove extends from the mouth to the end of each ray or arm. Each groove of each arm in turn has four rows of hollow tube feet that can be extended or withdrawn. Opposite the ambulacral groove is an ambulacral ridge on the aboral side of each ray, known as an ambulacrum. These have interambulacra between them.

Printed dictionaries and other books with definitions for Ambulacral

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Google previewThe Century Dictionary and Cyclopedia: Supplement (1910)

by William Dwight Whitney

ambulacral, >'□ 2. Situated on the side which bears the ambulacra ; hence, in Stelleroidea and Crinoidea, oral Ambulacral brush, in Bpa- tangoid sea-urchins, ...

Google previewChandler's Encyclopedia (1898)

An Epitome of Universal Knowledge ... by William Henry Chandler

Ambulacral Ossicles. Plates through or between which the ambulacra of Echino- derms project.

Google previewA Dictionary of Geology and Earth Sciences (2013)

by Michael Allaby

ambulacral Applied to those areas of the body of an *echinoderm that bear *tube feet. ambulacral groove See AMBULACRUM. ambulacrum (amb) In *Echinodermata, ...

Google previewA Dictionary of Entomology (2011)

AMBULACRAL Adj. (Latin, ambulare = to walk + -alis = pertaining to, having character of.) Pertaining to walking. AMBULACRAL SETA Setae, typically in a ventro-lateral position, used to support body or facilitate locomotion. Syn. Ambulatorial ...

Google previewDictionary of Invertebrate Zoology --Paperback (2010)

by Maggenti Mary Ann, Maggenti Armand, Gardner Scott

ambulacral areas (ECHINOD: Asteroidea) The radially arranged arms (typically 5) bearing the tube feet or podia. see interambulacral areas. ambulacral groove (ECHINOD: Asteroidea) A groove or furrow bordered by large ...

Google previewCentury Dictionary and Cyclopedia (1906)

Including Atlas of the World and Cyclopedia of Names

ambulacral (am-builă'krai), a. s. ambulacrum ambrotype a dark backing to the face of a thin negative on glass. The negative, as seen from behind, thus appears as a positive against the backing, the lights being ...

Google previewThe Century Dictionary and Cyclopedia: The Century dictionary ... prepared under the superintendence of William Dwight Whitney ... rev. & enl. under the superintendence of Benjamin E. Smith (1911)

Ambulacral face, ambulacral aspect, that surface of an echinoderm which bears the ambulacra; corresponding in a starfish to the oral aspect, that upon which the creature creeps.—Ambulacral groove, a furrow which marks the course of an ...

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Photos about Ambulacral

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Small photo of The arm of a horned starfish (Protoreaster nodosus) with the ambulacral groove. More...

Video about Ambulacral

Ambulacral Meaning

Video shows what ambulacral means. Of or pertaining to an ambulacrum. Ambulacral Meaning. How to pronounce, definition audio dictionary. How to say ...

Quotes about Ambulacral

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Scrabble value of A1M3B3U1L1A1C3R1A1L1

The value of this 10-letter word is 16 points, but it's not an accepted word in the Official Scrabble Players Dictionary.

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