How many letters does the top answer for “(of a substance) taken into and retained in another substance” have?

The most common answer is occluded (8 letters).

Crossword clue: (of a substance) taken into and retained in another substance

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

occluded 8 letters wn-def

(of a substance) taken into and retained in another substance

sorbed 6 letters wn-def

(of a substance) taken into and retained in another substance