crystalline humour

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crystalline humour (plural crystalline humours)

  1. (obsolete) The lens of the eye.
    • 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."