ambulacral

am·bu·lac·rum

 (ăm′byə-lăk′rəm, -lā′krəm)

n. pl. am·bu·lac·ra (-lăk′rə, -lā′krə)

One of the five radial areas on the undersurface of the starfish and similar echinoderms, from which the tube feet are protruded and withdrawn.

---

[Latin ambulācrum, walk planted with trees, from ambulāre, to walk; see ambhi in Indo-European roots.]

---

am′bu·lac′ral adj.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Thesaurus

Adj.

1.

ambulacral - pertaining to the ambulacra of radial echinoderms zoological science, zoology - the branch of biology that studies animals

Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.