Definition of ambulacrum in English:
noun (plural ambulacra-ˈlakrə-ˈlākrə)Zoology
(In a starfish or other echinoderm) each of the radially arranged bands, together with their underlying structures, through which the double rows of tube feet protrude.
- Furthermore, the placement of the ambulacra relative to the radials appears to be incorrect.
- It is contained by four rows of plates with the plates smaller along the dorsal side, probably indicating an ambulacrum.
- Four different groups of blastoids with moderately wide ambulacra evolved from groups with narrow ambulacra.
Early 19th century: Latin, 'avenue', from ambulare 'to walk'.
- Example sentences
- The ambulacral grooves are narrow and the ambulacral ossicles are not exposed.
- In asteroids, the ambulacrals arch to form a deep ambulacral groove.
- Its wide ambulacral grooves and open filtration fan made it adapted for motile particle capture in a wide variety of environments.
Definition of ambulacrum in:
- British & World English dictionary
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the US
Most popular in the UK
Most popular in Australia
Most popular in India
Most popular in Pakistan