There are, however, certain facts familiar to the cytologist that furnish a clue as to how such an interchange might take place.
cytologist cy·tol·o·gist (sī-tŏl'ə-jĭst)
A specialist in cytology.
cytology cy·tol·o·gy (sī-tŏl'ə-jē)
The branch of biology that deals with the formation, structure, and function of cells.