tomePronunciation: (tōm), [key]
a book, esp. a very heavy, large, or learned book.
a volume forming a part of a larger work.
a combining form with the meanings “cutting instrument” (microtome; osteotome
), “segment, somite” (sclerotome
), used in the formation of compound words. Cf. tomo-, -tomous, -tomy.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.