8 letters · 10 points in Scrabble
noun (biology) an organism that has characteristics resulting from chromosomal alteration
noun (genetics) any event that changes genetic structure; any alteration in the inherited nucleic acid sequence of the genotype of an organism
noun a change or alteration in form or qualities
originLate 14th century as Middle English mutacioun, from Latin mūtātiō, both directly and via Old French mutacion.
Etymology from Wiktionary, CC BY-SA 3.0