ANIMALCULIST
Etymology
Noun
animalculist (plural animalculists)
(historical) A believer in the theory that the embryo exists preformed within the spermatozoon; a proponent of animalculism. [from 18th c.]
(obsolete) Someone who studies animalcules. [19th c.]
Adjective
animalculist (comparative more animalculist, superlative most animalculist)
(historical) Pertaining to animalculism. [from 19th c.]
Source: Wiktionary
An`i*mal"cu*list, n. Etym: [Cf. F. animalculiste.]
1. One versed in the knowledge of animalcules. Keith.
2. A believer in the theory of animalculism.
Source: Webster’s Unabridged Dictionary 1913 Edition