Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of ambulacra is as below...

Pedata :: Pedata (n. pl.) An order of holothurians, including those that have ambulacral suckers, or feet, and an internal gill..

Spatangoidea :: Spatangoidea (n. pl.) An order of irregular sea urchins, usually having a more or less heart-shaped shell with four or five petal-like ambulacra above. The mouth is edentulous and situated anteriorly, on the under side..

Micraster :: Micraster (n.) A genus of sea urchins, similar to Spatangus, abounding in the chalk formation; -- from the starlike disposal of the ambulacral furrows..

Bivium :: Bivium (n.) One side of an echinoderm, including a pair of ambulacra, in distinction from the opposite side (trivium), which includes three ambulacra..

Interambulacrum :: Interambulacrum (n.) In echinoderms, one of the areas or zones intervening between two ambulacra. See Illust. of Ambulacrum..

Ambulacral :: Ambulacral (a.) Of or pertaining to ambulacra; avenuelike; as, the ambulacral ossicles, plates, spines, and suckers of echinoderms..

Trivium :: Trivium (n.) The three anterior ambulacra of echinoderms, collectively..

Asteridea :: Asteridea (n. pl.) A class of Echinodermata including the true starfishes. The rays vary in number and always have ambulacral grooves below. The body is star-shaped or pentagonal.

Ambulacriform :: Ambulacriform (a.) Having the form of ambulacra.

Adambulacral :: Adambulacral (a.) Next to the ambulacra; as, the adambulacral ossicles of the starfish..

Ambulacra :: Ambulacra (pl. ) of Ambulacru.

Interambulacra :: Interambulacra (pl. ) of Interambulacru.

Interambulacral :: Interambulacral (a.) Of or pertaining to the interambulacra.

Antambulacral :: Antambulacral (a.) Away from the ambulacral region.

Pentremites :: Pentremites (n.) A genus of crinoids belonging to the Blastoidea. They have five petal-like ambulacra.

Petal :: Petal (n.) One of the expanded ambulacra which form a rosette on the black of certain Echini.

Rosette :: Rosette (n.) Any structure having a flowerlike form; especially, the group of five broad ambulacra on the upper side of the spatangoid and clypeastroid sea urchins. See Illust. of Spicule, and Sand dollar, under Sand..

Random Fonts

Most Popular