- microhexactine
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n. [Gr. mikros, small; hex, six; aktis, ray](PORIFERA)A small hexactine spicule.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.