Acephalina

plural noun

Aceph·​a·​li·​na

(ˌ)āˌsefəˈlīnə,

əˌs-,

-lē-

: 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

Word History

Etymology

New Latin, from Greek akephalos + New Latin -ina

First Known Use

1893, in the meaning defined above

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now