01 n. In echinoderms, one of the areas or zones intervening between two ambulacra. See Illust. of Ambulacrum.
pl.
Interambulacra, Interambulacrums
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1.
In echinoderms, one of the areas or zones intervening between two ambulacra. See Illust. of Ambulacrum.(Zool.) See: Ambulacrum