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Webster 1913 Edition
Perspicil
Per′spi-cil
(pẽr′spĭ-sĭl)
, Noun.
 [LL. 
perspicilla
, fr. L. perspicere 
to look through.] An optical glass; a telescope. 
[Obs.] 
Crashaw.
 Webster 1828 Edition
Perspicil
PER'SPICIL
,Noun.
 An optic glass. [Little used.]
Definition 2025
perspicil
perspicil
English
Noun
perspicil (plural perspicils)
-  (obsolete) An optical glass; a telescope.
- (Can we find and add a quotation of Crashaw to this entry?)