How many letters does the top answer for “the branched, and often treelike, support of the colonies of certain infusoria.” have?

The most common answer is zoodendrium (11 letters).

Crossword clue: the branched, and often treelike, support of the colonies of certain infusoria.

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

zoodendrium 11 letters web-def

The branched, and often treelike, support of the colonies of certain Infusoria.

zooedendrium 12 letters web-def

The branched, and often treelike, support of the colonies of certain Infusoria.