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1. a vital, basic, decisive, or pivotal point: The crux of the trial was his whereabouts at the time of the murder.2. a cross.3. something that torments by its puzzling nature; a perplexing difficulty.[1635-45; < L: stake, scaffold, or cross used in executions, torment; figurative senses perh. < NL crux (interpretum) (commentators') torment, a difficult passage in a text; cf. CRUCIAL]Syn. 1. essence, heart, core, gist.
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LatinCross, also called the Southern Crossconstellation lying at about 12 hours 30 minutes right ascension (the coordinate on the celestial sphere analogous to longitude on the Earth) and 60° south declination (angular distance south of the celestial equator), now visible only from south of about 30° north latitude (i.e., the latitude of North Africa and Florida). It appears on the flags of Australia, New Zealand, and Samoa (formerly Western Samoa).Augustine Royer first described it as a constellation in 1679, but it has been written about since antiquity. The constellation has five bright stars, one badly placed from the viewpoint of symmetry so that the shape of the cross formed by the stars is somewhat irregular.* * *
Universalium. 2010.
