Animalcula is the plural of animalculum; there is no such word as animalculœ.
Every-Day Errors of Speech L. P. Meredith
animalculum (plural, animalcula) is used with the same meaning.
A Treatise on Physiology and Hygiene Joseph Chrisman Hutchison
a minute or microscopic animal, nearly or quite invisible to the naked eye, as an infusorian or rotifer. Archaic. a tiny animal, as a mouse or fly. Historical Examples Indeed, too sadly so, and I dare apply but a flash of the microscope to the rageing dilemmas of this animalcule. Rhoda Fleming, Complete George Meredith […]
a minute or microscopic animal, nearly or quite invisible to the naked eye, as an infusorian or rotifer. Archaic. a tiny animal, as a mouse or fly. noun (pl) -cules, -cula (-kjʊlə) a microscopic animal such as an amoeba or rotifer n. “very small animal,” especially a microscopic one, 1590s, from Late Latin animalculum, diminutive […]
the taxonomic kingdom comprising all animals. Historical Examples Et quamvis dicta Animalia hominibus subjecta esse dicantur ut habetur Ecclesiast: 17. The Criminal Prosecution and Capital Punishment of Animals Edmund P. Evans In the above table all vaccae, Animalia and Animalia ociosa are reckoned in the third column. Domesday Book and Beyond Frederic William Maitland Thus, […]
any member of the kingdom Animalia, comprising multicellular organisms that have a well-defined shape and usually limited growth, can move voluntarily, actively acquire food and digest it internally, and have sensory and nervous systems that allow them to respond rapidly to stimuli: some classification schemes also include protozoa and certain other single-celled eukaryotes that have […]