Definition of Ambulacrum

1. Noun. One of the five areas on the undersurface of an echinoderm on which the tube feet are located.

Group relationships: Echinoderm
Generic synonyms: Body Part
Derivative terms: Ambulacral



Definition of Ambulacrum

1. n. 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.

Definition of Ambulacrum

1. Noun. (context: of an echinoderm) A row of pores for the protrusion of appendages such as tube feet. ¹

¹ Source: wiktionary.com

Definition of Ambulacrum

1. [n -RA]

Medical Definition of Ambulacrum

1. Origin: L, an alley or covered way. 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. One of the suckers on the feet of mites. Source: Websters Dictionary (01 Mar 1998)

Ambulacrum Pictures

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Lexicographical Neighbors of Ambulacrum

ambrosian
ambrosias
ambrosin
ambrosins
ambrotype
ambrotypes
ambroxol
ambry
ambs
ambsace
ambsaces
ambulacra
ambulacral
ambulacriform
ambulacrum (current term)
ambulacrums
ambulance
ambulance chaser
ambulance chasers
ambulanceman
ambulancemen
ambulances
ambulancewoman
ambulancewomen
ambulant
ambulant erysipelas
ambulant oedema
ambulants
ambulate

Literary usage of Ambulacrum

Below you will find example usage of this term as found in modern and/or classical literature:

1. Materials for the study of variation treated with especial regard to by William Bateson (1894)
"ECHINOIDEA. interior ambulacrum was missing, whether it be the anterior ambulacrum, ... (2) Partial or total disappearance of a definite ambulacrum or ..."

2. Forms of Animal Life: A Manual of Comparative Anatomy : with Descriptions of by George Rolleston, William Hatchett Jackson (1888)
"One ambulacrum is anterior ; one inter- ambulacrum posterior, and easily recognisable by the presence of the anus in it in exocyclic forms, ..."

3. Maryland Geological Survey by Maryland Geological Survey (1913)
"Part of an ambulacrum, showing one row of ambulacral plates, ... Portion of an ambulacrum in a young specimen. About X 5. 10. Same as flg. ..."

4. Roma Sotterranea: Or, An Account of the Roman Catacombs, Especially of the by Giovanni Battista de Rossi, James Spencer Northcote (1879)
"This cubiculum, therefore, was constructed after the floor of the ambulacrum had been lowered, and in anticipation of a more considerable depression than ..."

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