Definition of Acephalina
: a tribe or other division of gregarines comprising forms with nonseptate trophozoites that do not undergo schizogony (as earthworm parasites of the genus Monocystis) — see monocystis
acephaline\(ˈ)ā¦sefəˌlīn, -əl-, -lə̇n\ adjective
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Origin and Etymology of acephalina
New Latin, from Greek akephalos + New Latin -ina
First Known Use: 1893
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