from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Of or pertaining to an ambulacrum
- n. Alternative form of ambulacrum.
from the GNU version of the Collaborative International Dictionary of English
- adj. Of or pertaining to ambulacra; avenuelike.
from The Century Dictionary and Cyclopedia
- Of or pertaining to an ambulacrum, or to the ambulacra, of an echinoderm.
- Situated on the side which bears the ambulacra; hence, in Stelleroidea and Crinoidea, oral.
- n. Same as ambulacral ossicle or plate.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. pertaining to the ambulacra of radial echinoderms
Sorry, no etymologies found.
In technical language, the surface from which these fleshy threads protrude, are called ambulacral areas, and the spaces between, interambulacral areas.
Echinoderms the interambulacral plates are absent; there are no rows of plates of a different kind alternating with the ambulacral ones, as in the Sea-Urchins and the Star-Fishes, but the ab-oral region closes immediately upon the ambulacra.
-- The ambulacral areas are narrow, but the poriferous zones are rather wide; and the interambulacral areas are about four times as wide as the ambulacral.
(combs), from which they take their name of Ctenophorae, with the ambulacral (locomotive) apparatus of the echinoderms.
"Body broadly ovate, elevated and truncate posteriorly; back oblique; dorsal impression lanceolate; scutab area very slightly excavated; ambulacral spaces broad, triangular, depressed; interambulacral spaces slightly convex; anteal furrow broad and shallow, sides slightly gibbous; sub-anal impressions broadly ob-cordate; post-oral spinous space broadly lanceolate.
[ECHINUS RUFFINII] "Body sub-depressed; ambulacral and interlambulacral; plates with several primary tubercles on each closely ranged, having circles of secondary tubercles surrounding their bases; rows of pores very oblique, with three pair of pores in each row, the uppermost distant from the other two.