Olbers' paradox
Having good manners; polite, courteous, and socially correct; conforming to standards of good behaviour.
(astronomy) The observation that the night sky is mostly dark, yet, in a boundless universe of stars, every line of sight from the eye must eventually intercept the surface of a star.
plural of meningioma
(slang, derogatory, vulgar) A weak or submissive man.
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