Noah Webster's 1828 American Dictionary of the English Language is regarded by many as the finest English
dictionary ever published. The dictionary is available in many forms. I made the content available here for my own purposes,
out of personal admiration for this particular dictionary.
ANIMAL'CULE, n. [L. animalculum, animalcula.] A little animal; but appropriately, an animal whose figure cannot be discerned without the aid of a magnifying glass; such as are invisible to the naked eye.