aqua regia

English dictionary entry

Meanings

noun
  1. A mixture of three parts concentrated hydrochloric acid to one part concentrated nitric acid, named for its ability to dissolve gold.

Pronunciation

/ˈɑː.kwə ˈɹeɪ.ɡi.ə/ /ˌækwə ˈɹiː.ʒə/ ăʹkwə-rēʹjē-ə En-us-aqua regia.ogg

Word forms

aqua regia A.R.

Etymology

Learned borrowing from Latin aqua rēgia (literally “royal water”), so named because it is one of the few solvents capable of dissolving noble metals.

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