As a deity name
Name 49 of the Durga Sahasranāma — Kula Arnava Tantra / Skanda Purana, as taught by Lord Shiva to Goddess Parvati
As a Hindi name
ज्वालामुखी · noun · masculine
वह पर्वत जिसकी चोटी के पास गहरा गड्ढा या मुँह होता है जिसमें धूआँ, राख तथा पिघले या जले हुए पदार्थ बराबर अथवा समय समय पर बराबर निकला करते हैं — Śabdasāgara
ज्वालामुखी · masculine
volcano
ज्वालामुखी
volcanic
a Hindi word of Sanskrit origin; it is not Sanskrit — per Wiktionary’s etymology record
“From Sanskrit ज्वाला (jvālā, “flame, blaze”) + मुख (mukhá, “mouth”).” — per Wiktionary’s etymology record
As a Sanskrit word
Meaning
fire or inflammable gas issuing forth from the earth
Scripturally attested Verified derivationWhy this matches what you typed
The spelling you confirmed, ज्वालामुखी, is itself a dictionary headword — no grammatical transformation stands between what you typed and the meaning above.
Dictionary citations
jvālā—mukhī f. fire or inflammable gas issuing forth from the earth, Bhpr. v, 26, 15
any place from which issues subterranean fire or inflammable gas (a celebrated Jvālā-mukhī, worshipped like others as a form of Durgā, exists in the hills northeast to the Panjāb)
N. of a Mantra, GarP. cciv
(˚khī-malinī), Tantras. ii.
jvālāmukhī f. (-khī) A place where subterraneous fires break forth; an object of veneration to the Hindus: a celebrated Jvālāmukhī exists in Lahore, to which pilgrimages are made; the soil abounding with carburetted hydrogen, which takes fire upon coming in contact with the external air; otherwise vents being made, a light is applied to the orifice, and flame being kindled, is fed by the stream of gas that escapes. The tongue of PĀRVATĪ is said to have fallen at this place. E. jvālā flame, and mukha chief, principal, fem. affix ṅīṣ.
Caveats
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