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a.1.(Zool.) Next to the ambulacra; as, the adambulacral ossicles of the starfish.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Tube feet were relatively small and embedded inside the adambulacral groove.
(a) aboral view, R = 66 mm; A: madreporite; B: spine (blunted); C: superomarginal plate; (b) oral view, r = 26 mm; D: actinal intermediate areas, with numerous pigmentation lacking suboral spines; E: furrow spines; F: subambulacral spines; G: inferomarginal plate; H: mouth; I: ambulacral groove; J: adambulacral border.
By this time, juveniles have well developed ventral spines, especially adambulacral spines, and yet still have cilia on their bodies (Fig.