Pronunciation: (sOO'dō), [key]
1. not actually but having the appearance of; pretended; false or spurious; sham.
2. almost, approaching, or trying to be.
a combining form meaning “false,” “pretended,” “unreal,” used in the formation of compound words (pseudoclassic; pseudointellectual): in scientific use, denoting close or deceptive resemblance to the following element (pseudobulb; pseudocarp), and used sometimes in chemical names of isomers (pseudoephedrine). Also, esp. before a vowel,pseud-.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.