How many letters does the top answer for “of or belonging to the class crustacea” have?

The most common answer is crustacean (10 letters).

Crossword clue: of or belonging to the class crustacea

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

crustacean 10 letters wn-def

any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton

belonging to the class tetrandria. 50% similar → tetrandrian, tetrandrous

belonging to the crustacea; crustacean. 50% similar → crustaceous

belonging to the middle class 50% similar → bourgeois