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Ambulacrum


/am-byuh-lak-ruhm, -ley-kruhm/

Noun, pl. ambulacra

1. (in a starfish or other echinoderm) Each of the radially arranged bands, together with their underlying structures, through which the double rows of tube feet protrude. (Google Dictionary)

2. This term refers to echinoderm’s five part radial areas (undersurfaced side) from where the tube feet protrude as well as withdraw. (buzzle.com)

 

Word origin: New Latin, from Latin, alley, from ambulare to walk — more


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