单词	Hydrus
释义	Hydrus noun astronomy : a small southern constellation that is visible between the constellations of Tucana and Mensa and that is represented by the figure of a snake … a small constellation in the southern sky called Hydrus, which means “male water snake.” Jesse Eisinger and Jake Bernstein, Knoxville (Tennessee) News-Sentinel, 18 Apr. 2010 Word History First Known Use 1675, in the meaning defined above
随便看	pyramidal tract pyramidale Pyramidalism Pyramidalist pyramidally pyramided pyramidellid Pyramidellidae pyramider pyramides pyramidia pyramidical pyramiding pyramidion pyramidions pyramidist pyramidists pyramido- pyramidoidal pyramidologist pyramidologists pyramidology pyramidon pyramidons pyramids

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