crystalline humour

Noun

 * 1)  The lens of the eye.
 * 2) * 1662, Henry More, An Antidote Against Atheism, Book II, A Collection of Several Philosophical Writings of Dr. Henry More, p. 80:
 * "And then again, the parts of the Eye are made Convex, that there might be a direction of many rayes coming from one point of the Object unto one point answerable in the bottom of the Eye; to which purpose the Crystalline Humour is of great moment, and without which the sight would be very obscure and weak."