How many letters does the top answer for “causing or promoting bacterial putrefaction” have?

The most common answer is putrefacient (12 letters).

Crossword clue: causing or promoting bacterial putrefaction

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

putrefacient 12 letters wn-def

causing or promoting bacterial putrefaction

putrefactive 12 letters wn-def

causing or promoting bacterial putrefaction