spatial-summation

noun

See under summation ( def 5 ).

Relevant Questions

What Is A Spatial Summat...

Origin:
1965–70

Dictionary.com Unabridged

noun

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:
1750–60; < Medieval Latin summātiōn- (stem of summātiō), equivalent to summāt(us) (past participle of summāre to sum; see -ate¹) + -iōn- -ion

Related forms

sum·ma·tion·al, adjective

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source

Link To spatial-summation

00:10

Spatial-summation is always a great word to know.

So is quincunx. Does it mean:

an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.

a chattering or flighty, light-headed person.

LEARN MORE UNUSUAL WORDS WITH WORD DYNAMO...

Collins

World English Dictionary

summation (sʌˈmeɪʃən)

—n
1.	the act or process of determining a sum; addition
2.	the result of such an act or process
3.	a summary
4.	(US) law the concluding statements made by opposing counsel in a case before a court

[C18: from Medieval Latin summātiō, from summāre to total, from Latin summasum¹]

sum'mational

—*adj*

'summative

—*adj*

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source

Etymonline

Word Origin & History

summation

1760, from Mod.L. summationem (nom. summatio) "an adding up," from L.L. summatus, pp. of summare "to sum up," from L. summa (see sum).

American Heritage

Medical Dictionary

summation sum·ma·tion (sə-mā'shən)
n.
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.

Matching Quote

"Major sex differences in intellectual function seem to lie in patterns of ability rather than in overall level of intelligence (IQ).... Men, on average, perform better than women on certain spatial tasks. In particular, men have an advantage in tests that require the subject to imagine rotating an object or manipulating it in some other way. They outperform women in mathematical reasoning tests and in navigating their way through a route. Further, men are more accurate in tests of target-directed motor skills—that is, in guiding or intercepting projectiles. Women tend to be better than men at rapidly identifying matching items, a skill called perceptual speed. They have greater verbal fluency, including the ability to find words that begin with a specific letter or fulfill some other constraint. Women also outperform men in arithmetic calculation and in recalling landmarks from a route. Moreover, women are faster at certain precision manual tasks, such as placing pegs in designated holes on a board."

-Doreen Kimura

Want ad-free? Click here!

Partners:Word Bloglines Citysearch The Daily Beast Ask Answers Ask Kids Life123 Sendori Home Advisor

About PRIVACY POLICY Terms API Careers Advertise with Us Contact Us Suggest a Word Help