Crossword clue: large mass of intrusive igneous rock believed to have solidified deep within the earth

The most common answer is batholith (9 letters).

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

Possible answers

batholith 9 letters wn-def

large mass of intrusive igneous rock believed to have solidified deep within the earth

pluton 6 letters wn-def

large mass of intrusive igneous rock believed to have solidified deep within the earth