Definition of aegirite in US English:

aegirite

noun

Mineralogy
rare
  • = aegirine.

Origin

Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. Alteration of aegirine, by suffix substitution.

Pronunciation

aegirite

/ˈiːdʒɪrʌɪt/