[ ō-gē′nō-knous′ ]
The rule of contraception stating that the time in the menstrual period when conception is most likely to occur is approximately midway between two menstrual periods, with conception being least likely just before or just after menstruation. It is the basis of the rhythm method of contraception.
Basic Spelling Rules ExplainedYou can teach yourself to be a better speller. It is important to realize that learning to spell is a process that is never complete. Spelling is something that everyone has to pay attention to and keep working at it. BASIC SPELLING RULES Short-Vowel Rule: When one-syllable words have a vowel in the middle, the vowel usually has a short sound. Examples: cat, dog, man, …
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.