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archeocyte

American  
[ahr-kee-uh-sahyt] / ˈɑr ki əˌsaɪt /
Or archaeocyte

noun

Zoology.
  1. (in sponges) a type of amoebocyte capable of developing into other types of cells, especially reproductive cells.


Etymology

Origin of archeocyte

First recorded in 1885–90; archeo- + -cyte