n.

1. 谷粒[C]
   Not a grain of rice was wasted.

   一粒米也没有浪费。

2. 谷物，谷类[U][C]
   Farmers grow grain and keep cattle.

   农民种谷养牛。

3. （砂、盐等的）粒，细粒[C]
   There is a grain of sand in his eye.

   他眼里有一粒沙子。

4. （常用于否定句）一点儿[C][（+of）]
   There isn't a grain of truth in his statement.

   他的声明里没有一点是真实的。

5. （木、石、织物等的）纹理[the S]
   The mahogany table has a fine grain.

   那张红木桌纹理精美。

6. 格令（英美制最小重量单位，0.0648克）
7. 气质，本质[U]
   They are similar in grain.

   他们气质相似。

vt.

1. 使成粒状
2. 把……漆成木纹或石纹状
3. 对（皮革的）粒面进行处理
4. 使深深渗入

vi.

1. 成粒状，结晶

n.

1. wheat or other cultivated cereal used as food.
   ▸a single seed or fruit of a cereal.
2. a small, hard particle of a substance such as sand.
   ▸a discrete particle or crystal in a metal, igneous rock, etc.
3. the smallest unit of weight in the troy and avoirdupois systems, equal to ¹⁄₅₇₆₀ of a pound troy and ¹⁄₇₀₀₀ of a pound avoirdupois (approximately 0.0648 grams).
   ▸the smallest possible amount:

   there wasn't a grain of truth in what he said.
4. the longitudinal arrangement of fibres in wood, paper, etc.
   ▸the texture of wood, stone, etc.
5. the rough or wrinkled outer surface of leather.
6. a grainy appearance of a photograph or negative.
7. historical kermes or cochineal, or dye made from either of these.

v.

1. give a rough surface or texture to.
2. form into grains.
3. [usu. as noun graining] paint in imitation of the grain of wood or marble.
4. remove hair from (a hide).