See under summation(def 5).
Words nearby spatial summation
Origin of spatial summation
First recorded in 1965–70
Definition for spatial summation (2 of 2)
[ suh-mey-shuh n ]
/ səˈmeɪ ʃən /
the act or process of summing.
the result of this; an aggregate or total.
a review or recapitulation of previously stated facts or statements, often with a final conclusion or conclusions drawn from them.
Law. the final arguments of opposing attorneys before a case goes to the jury.
Physiology. the arousal of impulses by a rapid succession of stimuli, carried either by separate sensory neurons (spatial summation) or by the same sensory neuron (temporal summation).
Origin of summation
OTHER WORDS FROM summationsum·ma·tion·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for spatial summation
/ (sʌˈmeɪʃən) /
the act or process of determining a sum; addition
the result of such an act or process
US law the concluding statements made by opposing counsel in a case before a court
Derived forms of summationsummational, adjectivesummative, adjective
Word Origin for summation
C18: from Medieval Latin summātiō, from summāre to total, from Latin summa sum 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for spatial summation
[ sə-mā′shən ]
The process by which multiple or repeated stimuli can produce a response in a nerve, muscle, or other part that one stimulus alone cannot produce.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.