(dÉªËfaÉªn) vb (tr) 1. to state precisely the meaning of (words, terms, etc) 2. to describe the nature, properties, or essential qualities of. 3. to determine the boundary or extent of. 4. (often passive) to delineate the form or outline of: the shape of the tree was clearly defined by the light behind it.
Theo Geisel redirects here. For the physicist, see Theo Geisel (physicist). Theodor Seuss Geisel (/ËsÉÉªs/ /ËÉ¡aÉªzÉl/; March 2, 1904 â September 24, 1991) was an American writer, cartoonist, animator, book publisher, and artist best known for authoring children's books under the pen name Dr. Seuss (/suËs/).
Theodor Seuss Geisel was born on March 2, 1904, in Springfield, Massachusetts. He published his first children's book, And to Think That I Saw It on Mulberry Street, under the name of Dr. Seuss in 1937. Next came a string of best sellers, including The Cat in the Hat and Green Eggs and Ham. His rhymes and characters are beloved by generations.