n. 砂砾, 粗砂石

vt. 覆以砂砾, 咬牙切齿地说

vi. 摩擦作声

[医] 磨光粉

Grit \Grit\, n. [OE, greet, greot, sand, gravel, AS. gre['o]t
grit, sant, dust; akin to OS griott, OFries. gret gravel,
OHG. grioz, G. griess, Icel. grj[=o]t, and to E. groats,
grout. See {Groats}, {Grout}, and cf. {Grail} gravel.]
1. Sand or gravel; rough, hard particles.

2. The coarse part of meal.

3. pl. Grain, esp. oats or wheat, hulled and coarsely ground;
in high milling, fragments of cracked wheat smaller than
groats.

4. (Geol.) A hard, coarse-grained siliceous sandstone; as,
millstone grit; -- called also {gritrock} and {gritstone.}
The name is also applied to a finer sharp-grained
sandstone; as, grindstone grit.

5. Structure, as adapted to grind or sharpen; as, a hone of
good grit.

6. Firmness of mind; invincible spirit; unyielding courage;
fortitude. --C. Reade. --E. P. Whipple.


Grit \Grit\ (gr[i^]t), v. i.
To give forth a grating sound, as sand under the feet; to
grate; to grind.

The sanded floor that grits beneath the tread.
--Goldsmith.


Grit \Grit\, v. t. [imp. & p. p. {Gritted}; p. pr. & vb. n.
{Gritting}.]
To grind; to rub harshly together; to grate; as, to grit the
teeth. [Collog.]