tour·ma·line 
(trmə-lĭn, -lēn′)
(trmə-lĭn, -lēn′)n.
A complex crystalline silicate containing aluminum, boron, and other elements, used in electronic instrumentation and, especially in its green, clear, and blue varieties, as a gemstone.
[French, from Sinhalese toramalli, carnelian.]
- continuable
- continual
- continually
- continuance
- continuant
- continuation
- continuative
- continuatively
- continuator
- continue
- continued fraction
- continuer
- continuing education
- continuity
- continuo
- continuous
- continuous creation theory
- continuously
- continuousness
- continuous phase
- continuous spectrum
- continuous variation
- continuous wave
- continuous-wave
- continuum