pi·tu·i·tar·y (pĭ-tĭ-tĕr′ē, -ty-)
n. pl. pi·tu·i·tar·ies
1. The pituitary gland.
2. Medicine An extract from the anterior or posterior lobes of the pituitary gland, prepared for therapeutic use.
1. Of or relating to the pituitary gland.
2. Of or secreting phlegm or mucus; mucous.
[From Latin pītuītārius, of phlegm (from the early belief that it produced mucus), from pītuīta, phlegm; see peiə- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The American Heritage Dictionary Blog
Check out our blog, updated regularly, for new words and revised definitions, interesting images from the 5th edition, discussions of usage, and more.