appulse

[uh-puhls]

ap·pulse

[uh-puhls]
noun
1.
energetic motion toward a point.
2.
the act of striking against something.
3.
Astronomy. the approach or occurrence of conjunction between two celestial bodies.

Origin:
1620–30; < Latin appulsus driven to, landed (past participle of appellere), equivalent to ap- ap-1 + pul- (variant stem of pellere to drive, push) + -sus, variant of -tus past participle suffix

ap·pul·sive, adjective
ap·pul·sive·ly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Appulse is always a great word to know.
So is absolute magnitude. Does it mean:
the magnitude of a star as it would appear to a hypothetical observer at a distance of 10 parsecs or 32.6 light-years
one fourth of the moon's monthly revolution
Collins
World English Dictionary
appulse (əˈpʌls)
 
n
a very close approach of two celestial bodies so that they are in conjunction but no eclipse or occultation occurs
 
[C17: from Latin appulsus brought near, from appellere to drive towards, from pellere to drive]
 
ap'pulsive
 
adj
 
ap'pulsively
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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