CoenenchymC[oe]*nen"chym\, Coenenchyma \C[oe]*nen"chy*ma\n. [NL. coenenchyma, fr. Gr. ? common + ? something poured in. Formed like parenchyma.] (Zo["o]l.) The common tissue which unites the polyps or zooids of a compound anthozoan or coral. It may be soft or more or less ossified. See Coral.