[ ĕk′skə-lā′shən ]
The absence, suppression, or failure to develop one member of a series, such as a finger or vertebra.
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Question 1 of 7
This tall, horizontally branched cactus is probably the most recognizable cactus in Arizona. What is it called?
Words nearby excalation
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Example sentences from the Web for excalation
In fact, more or less complete “excalation” of the somite takes place.