- Any of numerous small insect-eating passerine birds of the family Paridae, found in woodland areas throughout the world and including especially members of the genus Parus, such as the chickadee. See Regional Note at tit1. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.