| 单词 | ambulacraire | 
| 释义 | † ambulacrairen. Zoology. Obsolete. rare.   Each of the ambulacra of an echinoderm (see ambulacrum n.). ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > 			[noun]		 > subphylum Eleutherozoa > class Echinoidea > member of (sea-urchin) > parts of > group of perforated coronal pieces ambulacraire1837 1837    Penny Cycl. IX. 260/2  				The ambulacraires narrower and covered with very small, fine, close-set spines. This entry has been updated (OED Third Edition, March 2020; most recently modified version published online June 2022). < | 
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