LEAD n.
lead Etym: [so called from Krems or Kremnitz, in Austria], a pure variety of white lead, formed into tablets, and called also Krems, or Kremnitz, white, and Vienna white. -- Lead arming, tallow put in the hollow of a sounding lead. See To arm the lead (below). -- Lead colic. See under Colic. -- Lead color, a deep b…
LEARNED a.
ing; possessing, or characterized by, learning, esp. scholastic learning; erudite; well-informed; as, a learned scholar, writer, or lawyer; a learned book; a learned theory. The learnedlover lost no time. Spenser. Men of much reading are greatly learned, but may be little knowing. Locke. Words of learned length and thu…
LET v.
To insert, or imbed, as a piece of wood, in a recess formed in a surface for the purpose. To let loose, to remove restraint from; to permit to wander at large. -- To let off (a) To discharge; to let fly, as an arrow; to fire the charge of, as a gun. (b) To release, as from an engagement or obligation. [Colloq.] To let…
LEUCIN n.
A white, crystalline, nitrogenous substance formed in the decomposition of albuminous matter by pancreatic digestion, by the action of boiling dilute sulphuric acid, and by putrefaction. It is also found as a constituent of various tissues and organs, as the spleen, pancreas, etc., and likewise in the vegetable kingdom…