We don't have synonyms for animalcula yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are animalcule, animalculum and animalcular.
(n) :
(zoology, archaic) A microscopic aquatic animal, including protozoa and rotifers.
(n) :
(physiology, historical) A sperm cell or spermatozoon; also, the embryo that was formerly thought to be contained inside a spermatozoon in a fully developed state.
(n) :
(zoology, archaic) A microscopic aquatic animal, including protozoa and rotifers.
(n) :
(physiology, historical) A sperm cell or spermatozoon; also, the embryo that was formerly thought to be contained inside a spermatozoon in a fully developed state.