ser·tu·lar·i·an (sûr′chə-lârē-ən, sûr′tl-âr-)
Any of various colonial hydroids of the genus Sertularia, having stalkless polyps arranged in pairs along a branching stem.
[From New Latin Sertulāria, genus name, from Latin sertula, diminutive of serta, garland, from feminine past participle of serere, to join; see ser-2 in the Appendix of Indo-European roots.]
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