See Also: Wolstonian(dictionary)

Perspex (iou) and Wolstonian (iou)


Perspex (iou)



Perspex noun. Also perspex. M20.
[Irreg. from Latin perspect- pa. ppl stem of perspicere look through, formed as PER-1 + specere look (at).]
(Proprietary name for) polymerized methyl methacrylate, a tough transparent thermoplastic that is much lighter than glass and does not splinter. Freq. attrib.
? Other proprietary names for this substance are PLEXIGLAS, LUCITE.

Wolstonian (iou)



Wolstonian adjective & noun. M20.
[from Wolston, a village in Warwickshire, England + -IAN.]
Geology. (Designating or pertaining to) the penultimate Pleistocene glaciation in Britain, identified with the Saale of northern Europe (and perhaps the Riss of the Alps).