Pronunciation: (lOOk), [key]
1. an early Christian disciple and companion of Paul, a physician and probably a gentile: traditionally believed to be the author of the third Gospel and the Acts.
2. the third Gospel.
3. a male given name: from the Greek word meaning “man of Lucania.”
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.