red dwarf

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noun Astronomy.

any of the faint reddish stars having diameters about half that of the sun and low surface temperatures, about 2000–3000 K; a main sequence star of spectral type M.

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Origin of red dwarf

First recorded in 1915–20

Words nearby red dwarf

red dog, red dogwood, red doll, red drum, red duster, red dwarf, rede, redear sunfish, red earth, redecorate, redeem

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for red dwarf

Former Red Sox star Curt Schilling says his politics are keeping him out of Cooperstown.
Conservative Curt Says His Politics, Not His Pitching, Kept Him Out of the Hall of Fame|Ben Jacobs|January 9, 2015|DAILY BEAST
Nor does the jet have the ability to capture high-definition video, utilize an infra-red pointer.
Pentagon Misfires in Stealth Jet Scandal|Dave Majumdar|January 8, 2015|DAILY BEAST
There was deep brown flesh, and bronze flesh, and pallid white flesh, and flesh turned red from the hot sun.
Powerful Congressman Writes About ‘Fleshy Breasts’|Asawin Suebsaeng|January 7, 2015|DAILY BEAST
A Republican candidate hoping to win red state support could find a worse team to root for than one from Dallas.
Will Chris Christie Regret His Cowboy Hug?|Matt Lewis|January 5, 2015|DAILY BEAST

The pale, baby-faced, red-cheeked rapper is furiously puffing away at a hastily-made blunt crammed with low-grade weed.
The Cult of Yung Lean: ‘I’m Building An Anarchistic Society From the Ground Up’|Marlow Stern|January 4, 2015|DAILY BEAST
Beginners must be warned against mistaking the edges of cells, or particles which have retained the red stain, for bacilli.
A Manual of Clinical Diagnosis|James Campbell Todd
Under the internal pressure his whiskers stood on end and his face grew red.
The Bondboy|George W. (George Washington) Ogden
“You appear to feel it so,” rejoined Mr. Pickwick, smiling at the clerk, who was literally red-hot.
The Posthumous Papers of the Pickwick Club, v. 2(of 2)|Charles Dickens
Ripperda's eye fell upon the mantle,—it was discoloured a dark red in many places, he nodded his head, and the man withdrew.
The Pastor's Fire-side Vol. 3 of 4|Jane Porter
C was a Captain, all covered with lace; D was a drunkard, and had a red face.
Boys and Girls Bookshelf; a Practical Plan of Character Building, Volume I (of 17)|Various

British Dictionary definitions for red dwarf

red dwarf

noun

one of a class of small cool main-sequence stars

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

Scientific definitions for red dwarf

red dwarf

A small, dim star with relatively cool surface temperatures, positioned to the lower right on the main sequence in the Hertzsprung-Russell diagram. Red dwarfs, at about 0.1 to 0.5 solar mass, consume their nuclear fuel very slowly and live for about 100 billion years. Although they are difficult to see, they are so long-lived that they are likely the most abundant type of star; of the 30 nearest stars to Earth, 21 are red dwarfs, including the closest star, Proxima Centauri. See Note at dwarf star.

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red dwarf

noun Astronomy.

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Origin of red dwarf

Words nearby red dwarf

Example sentences from the Web for red dwarf

British Dictionary definitions for red dwarf

noun

Scientific definitions for red dwarf