5 letters · 7 points in Scrabble
noun a person who is almost identical to another
verb make multiple identical copies of
noun a group of genetically identical cells or organisms derived from a single cell or individual by some kind of asexual reproduction
originCoined (in botany) in 1903, based on Ancient Greek κλών (klṓn, “twig”). Figurative use from the 1970s.
Etymology from Wiktionary, CC BY-SA 3.0