A cardiac dysrhythmia in which heartbeats occur in groups of four, usually composed of one sinus beat followed by three extrasystolic beats.
Do You Know These Sizzlin’ Southern Sayings?Read more in this article about some frequently asked questions and fun facts related to our definitions.
How To Use ParallelismsWhen writers use very similar wording across several sentences or lines of poetry, it’s known as parallel sentence structure. Doing this creates rhythm and balance. Parallel sentence structures are also known as parallelisms. Simple parallelisms may be as short as words or phrases. More complex ones may combine entire clauses or sentences. Parallel sentence structures can highlight aspects of stories and poems in many ways. …
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.