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tourmaline in British English
(ˈtʊəməˌliːn)
noun
any of a group of hard glassy minerals of variable colour consisting of complex borosilicates of aluminium with quantities of lithium, sodium, calcium, potassium, iron, and magnesium in hexagonal crystalline form: used in optical and electrical equipment and in jewellery
Derived forms
tourmalinic (ˌtʊəməˈlɪnɪk) adjective
Word origin
C18: from German Turmalin, from Sinhalese toramalli carneliantourmaline in American English
(ˈtʊrməlɪn; ˈtʊrməˌlin)
noun
a very hard, piezoelectric, rhombohedral mineral, (Na,Ca)(Mg,Fe,Al,Li)3Al6(BO3)3(Si6O18)(OH)4, of various colors, used as a gem and in making pressure gauges
Word origin
Fr, ult. < Sinhalese tōramalli, carnelianImage oftourmaline
© Albert Russ, Shutterstock
Examples of 'tourmaline' in a sentencetourmaline
Word lists withtourmaline
gem, mineral- on pain of death/imprisonment
- on-pain-of-something-under-pain-of-something
- on pain of sth/under pain of sth
- on paper
- on parade
- on parole
- on patrol
- on payment of
- on pins and needles
- on point
- on prescription
- on presentation of ...
- on principle
- on probation
- on production of
- on production of something/on the production of something
- on-production-of-something-on-the-production-of-something
- on purpose
- on-ramp
- on receipt of
- on record
- on reflection
- epic fail
- epicheirema
- epichlorohydrin