Latin word meaning cross, often used in scientific names and phrases, particularly in astronomy and anatomy; for example, Crux Australis is the Southern Cross.
Direct from Latin 'crux' (cross), with '-is' as a genitive or nominative ending; the word has been used in scientific nomenclature since the Middle Ages.
When astronomers name constellations, they use Latin terms like 'Crux Australis' and 'Crux Australis'—the cross-shaped star patterns were named this way hundreds of years ago!
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