Perspicacious
Pronunciation : Per`spi*ca"cious
Part of Speech : a.
Etymology : [L. perspicax, -acis, fr. perspicere to look through: cf. F. perspicace. See Perspective.]
Definition : 1. Having the power of seeing clearly; quick-sighted; sharp of sight.
2. Fig.: Of acute discernment; keen. -- Per`spi*ca"cious*ly, adv. -- Per`spi*ca"cious*ness, n.
Source : Webster's Unabridged Dictionary, 1913