[Greek χείρ hand] of identical form and turned in the same direction, as two right or two left hands; opposed to heterochiral.
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homochiral1879
1879 W. Thomson & P. G. TaitTreat. Nat. Philos. (new ed.) I: Pt. i. §97 The similarity of a right-hand and a left-hand is called heterochiral: that of two right-hands, homochiral. Any object and its image in a plane mirror are heterochirally similar.