Definition of "capitulum" [ca•pit•u•lum]

• Botany See flower head. (noun)
• Biology A small knob or head-shaped part, such as a protuberance of a bone or the tip of an insect's antenna. (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.

• "Above the front part of the capitulum is a slight depression, the radial fossa, which receives the anterior border of the head of the radius, when the forearm is flexed."
• "Vespers, that is, the capitulum, hymn, antiphon of the "Magnificat", is taken from the Sanctorale."
• "Greek Fathers, (as "capitulum" by the Latins,) to denote a passage of"