The shortest pelvic diameter through which the fetal head must pass during birth, measured from the promontory of the sacrum to a point a few millimeters from the top of the pubic symphysis.
ACTION! Verbs in the SpotlightA verb conveys the action or state of being within a sentence. It answers the question what happens? In the sentence “John drives to the store,” for example, the answer to “What happens to John?” is that John drives. The base form of a verb starts with the word to and ends with the infinitive, or root, verb. Examples include to walk, to go, to …
desuRead more in this article about some frequently asked questions and fun facts related to our definitions.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.