See Also: propale(dictionary)

tourmaline (iou) and propale (iou)


tourmaline (iou)



tourmaline noun & adjective. M18.
[French tourmaline, German Turmalin, Dutch toermalijn, Spanish, Italian, turmalina, ult. from Sinhalese toramalli cornelian.]
A. noun.
Mineralogy. A brittle boron aluminosilicate mineral with a glassy lustre, occurring as prismatic crystals of the trigonal system, in compact or columnar masses, and in esp. granitic rocks, usually blackish and opaque (schorl), but also valued as a semi-precious stone in semi-transparent forms of various shades, and used (esp. for its pyroelectric and polarizing properties) in electrical and optical instruments. M18.
b. A specimen or gem of this mineral. E19.
(Proprietary name for) a mink fur of a pale beige colour; the colour of this. M20.
b. attrib. or as adjective. Of the colour of tourmaline (sense A.2 above), pale beige. M20.
tourmalinize verb trans. (Geology) alter (granitic rock) into a form rich in tourmaline, esp. by hydrothermal veining (chiefly as
tourmalinized ppl adjective,
tourmalinizing verbal noun) L19.
tourmalini'zation noun the process or state of being tourmalinized L19.

propale (iou)



propale verb trans. Chiefly Scot. Long arch. E16.
[Late Latin propalare, from Latin propalam, formed as PRO-1 + palam openly.]
Publish, divulge, disclose.
Also propalate verb trans. L16-E18.