What does "andesite" mean?

Any of a class of fine-grained intermediate igneous rock, of volcanic origin, containing mostly plagioclase feldspar.

How do you pronounce "andesite"?

Pronounced //ˈæn.dɪˌsaɪt//.

Common synonyms include: adesite, andesite mineralogy, andesite rock, andesite setting, arc volcanism rock, compositionally intermediate rock.

/ˈæn.dɪˌsaɪt/ noun

noun ·Rare ·Advanced level

Noun

1
Any of a class of fine-grained intermediate igneous rock, of volcanic origin, containing mostly plagioclase feldspar. countable, uncountable
2
a dark grey volcanic rock wordnet

From Andes + -ite.