ambulacraladj.

Brit.

/ˌambjᵿˈleɪkrəl/,

/ˌambjᵿˈlakrəl/, U.S.

/ˌæmbjəˈleɪkrəl/,

/ˌæmbjəˈlækrəl/

Origin: Formed within English, by derivation. Etymons: ambulacrum n., -al suffix¹.

Etymology: < ambulacrum n. + -al suffix¹.Compare scientific Latin ambulacralis (1832 or earlier).

Zoology.

Of or relating to the ambulacra of echinoderms; belonging to an ambulacrum (see ambulacrum n.).

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [adjective] > belonging to or resembling echinoderms > of parts of > of or relating to ambulacra

ambulacral1811

1811 J. Parkinson Org. Remains Former World III. iv. 32 The shell is ovate, gibbous, and rather acute at one end; the base flat. On the back originate five porous, sub-petalous, ambulacral bands, which reach to the periphery.

1857 J. G. Wood Common Objects Sea Shore vii. 128 These are the ambulacral organs..but I prefer to call them feet. These feet are in fact suckers.

a1933 J. A. Thomson Biol. for Everyman (1934) I. x. 169 In most cases the tube-feet are too small to be used in locomotion, but they may help in breathing. There is no open ambulacral or tube-foot groove.

2006 D. H. Erwin Extinction x. 246 This pentameral symmetry is formed by the ambulacral plates that cover the tube feet.

This entry has been updated (OED Third Edition, March 2020; most recently modified version published online June 2022).

单词	ambulacral
释义	ambulacraladj. Brit. /ˌambjᵿˈleɪkrəl/, /ˌambjᵿˈlakrəl/, U.S. /ˌæmbjəˈleɪkrəl/, /ˌæmbjəˈlækrəl/ Origin: Formed within English, by derivation. Etymons: ambulacrum n., -al suffix¹. Etymology: < ambulacrum n. + -al suffix¹.Compare scientific Latin ambulacralis (1832 or earlier). Zoology. Of or relating to the ambulacra of echinoderms; belonging to an ambulacrum (see ambulacrum n.). ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [adjective] > belonging to or resembling echinoderms > of parts of > of or relating to ambulacra ambulacral1811 1811 J. Parkinson Org. Remains Former World III. iv. 32 The shell is ovate, gibbous, and rather acute at one end; the base flat. On the back originate five porous, sub-petalous, ambulacral bands, which reach to the periphery. 1857 J. G. Wood Common Objects Sea Shore vii. 128 These are the ambulacral organs..but I prefer to call them feet. These feet are in fact suckers. a1933 J. A. Thomson Biol. for Everyman (1934) I. x. 169 In most cases the tube-feet are too small to be used in locomotion, but they may help in breathing. There is no open ambulacral or tube-foot groove. 2006 D. H. Erwin Extinction x. 246 This pentameral symmetry is formed by the ambulacral plates that cover the tube feet. This entry has been updated (OED Third Edition, March 2020; most recently modified version published online June 2022). < adj.1811
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