gum

名词 gum:

1. a preparation (usually made of sweetened chicle) for chewing
   同义词：chewing gum
2. the tissue (covered by mucous membrane) of the jaws that surrounds the bases of the teeth
   同义词：gingiva
3. any of various substances (soluble in water) that exude from certain plants; they are gelatinous when moist but harden on drying
4. cement consisting of a sticky substance that is used as an adhesive
   同义词：glue, mucilage
5. wood or lumber from any of various gum trees especially the sweet gum
   同义词：gumwood
6. any of various trees of the genera Eucalyptus or Liquidambar or Nyssa that are sources of gum
   同义词：gum tree

动词 gum:

1. cover, fill, fix or smear with or as if with gum
2. grind with the gums; chew without teeth and with great difficulty
   同义词：mumble
3. become sticky
4. exude or form gum

1. Frankincense is a type of sweet-smelling gum from a tree.
   乳香是从树上提炼的一种有甜味的树脂。
2. Many people like to chew mint gum in the summer.
   许多人喜欢在夏天嚼薄荷口香糖。
3. His pocket was all gummed up with candy.
   他的口袋全被糖粘住了。
4. He likes chewing gum.
   他喜欢嚼口香糖。

gum

n.（名词）

Any of various viscous substances that are exuded by certain plants and trees and dry into water-soluble, noncrystalline, brittle solids.
树胶：某些植物和树木分泌出的一种粘性物质，干燥后成为溶于水的非晶体、易碎的固体
A similar plant exudate, such as a resin.
树脂：一种类似的植物渗出液，如树脂
Any of various adhesives made from such exudates or other sticky substance.
胶浆：由此种渗出液或其它粘性物质制成的胶粘剂的任一种
A substance resembling the viscous substance exuded by certain plants, as in stickiness.
粘性物质，粘胶：与某些树木渗出的粘性物质相似的物质，如在粘性里

Any of various trees of the generaEucalyptus, Liquidambar, or Nyssa that are sources of gum.
胶橡树：一种桉树属、枫香树属 或 柴树属 中生产树胶的树木
The wood of such a tree; gumwood.
胶树材：产树胶的树的木材；胶树材
Chewing gum.
口香糖
v.（动词）
gummed,gum.ming,gums
v.tr.（及物动词）
To cover, smear, seal, fill, or fix in place with or as if with gum.
以树胶粘合：用或似乎用树胶覆盖、涂抹、封上、填充或固定住
v.intr.（不及物动词）
To exude or form gum.
结胶：分泌或形成树胶
To become sticky or clogged.
发粘：变得发粘或易粘牢的

<常用词组>gum up
To ruin or bungle:
搞乱，出毛病：
例句：
gum up the works.
把工作搞糟

来源：
Middle English gomme
中古英语 gomme
from Old French
源自 古法语
from Late Latin gumma
源自 后期拉丁语 gumma
variant of Latin gummi, cummi
拉丁语 gummi的变体, cummi
from Greek kommi
源自 希腊语 kommi
perhaps from Egyptian ±mj-t
可能源自 埃及语 ±mj-t

gum
gum 2

n.（名词）
The firm connective tissue covered by mucous membrane that envelops the alveolar arches of the jaw and surrounds the bases of the teeth.Also called gingiva
龈，牙床：覆盖着粘膜的坚韧的连接组织，包裹颚上的弓形牙槽及牙根部也作 gingiva
v.tr.（及物动词）
gummed,gum.ming,gums
To chew (food) with toothless gums.
用牙床嚼：用没有牙齿的牙床咀嚼（食物）

来源：
Middle English gome
中古英语 gome
from Old English gôma [palate, jaw]
源自 古英语 gôma [腭，颚]