grit(1) (iou) and Insensitive Laminae - Horse Racing (gambling)

grit(1) (iou)

grit noun1.
[Old English greot = Old Saxon griot, Old High German grio (German Griess), Old Norse grjot, from Germanic base also of GRIT noun2.]
collect. Formerly, sand, gravel, small stones. Now, minute particles of stone or sand, spec. as causing discomfort, clogging machinery, etc. OE.
Soldier The road..is unmetalled and covered in grit.
b. A grain of sand. rare. E17.
Coarse sandstone. ME.
Earth, soil, mould; the ground. obsolete exc. dial. ME.
The grain or texture of a stone; the fineness, coarseness, etc., of a stone. E16.
Strength of character; pluck, endurance, stamina. Also clear grit, true grit. colloq. E19.
G. Stein She had grit and endurance and a vital courage.
b. Canad. History. More fully clear grit. Orig., a supporter of the Clear Grit party, a 19th cent. liberal reform group which ultimately merged with the Liberal Party. Later, a liberal, a radical. M19.
Phrases & comb.: clear grit: see senses 5, 5b above. grit-blast verb trans. & intrans. clean and roughen (a surface) by using a directed stream of abrasive particles; sandblast. gritstone = sense 2 above. MILLSTONE grit. the clear grit slang the real thing, the genuine article. true grit: see sense 5 above.
gritless adjective (rare) L19.

Insensitive Laminae - Horse Racing (gambling)

The layer just under the wall of the hoof; similar to the human fingernail. It is an integral structure that helps to attach the hoof wall to the underlying coffin bone.

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