TOURMALINE


Meaning of TOURMALINE in English

[ 'tʊəməlɪn , -li:n ]

■ noun a brittle grey or black mineral consisting of a boron aluminosilicate, with piezoelectric and polarizing properties.

Origin

C18: from Fr., based on Sinhalese tōramalli 'carnelian'.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.