Crossword clue: in evolution, a deviation from the typical sequence in the formation of organs or parts.

The most common answer is heterochronism (14 letters).

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

heterochronism 14 letters web-def

In evolution, a deviation from the typical sequence in the formation of organs or parts.

heterochrony 12 letters web-def

In evolution, a deviation from the typical sequence in the formation of organs or parts.