a. 刺耳的, 沉重的, 剧烈的

[化] 研磨; 磨碎

[医] 磨

Grind \Grind\, v. t. [imp. & p. p. {Ground}; p. pr. & vb. n.
{Grinding}.] [AS. grindan; perh. akin to L. frendere to
gnash, grind. Cf. {Grist}.]
1. To reduce to powder by friction, as in a mill, or with the
teeth; to crush into small fragments; to produce as by the
action of millstones.

Take the millstones, and grind meal. --Is. xivii.
2.

2. To wear down, polish, or sharpen, by friction; to make
smooth, sharp, or pointed; to whet, as a knife or drill;
to rub against one another, as teeth, etc.

3. To oppress by severe exactions; to harass.

To grind the subject or defraud the prince.
--Dryden.

4. To study hard for examination; -- commonly used with away;
as, to grind away at one's studies. [College Slang]


Grinding \Grind"ing\, a. & n.
from Grind.

{Grinding frame}, an English name for a cotton spinning
machine.

{Grinding mill}.
(a) A mill for grinding grain.
(b) A lapidary's lathe.