tooth
/tuːθ/noun
(pl. teeth)
1
- each of a set of hard, bony enamel-coated structures in the jaws of most vertebrates, used for biting and chewing（绝大多数脊椎动物的）牙, 齿。
1.1
- a similar hard, pointed structure in invertebrate animals, typically functioning in the mechanical breakdown of food（无脊椎动物的）牙, 齿。
1.2
- an appetite or liking for a particular thing口味; 爱好：
what a tooth for fruit a monkey has!
猴子是多么的爱吃水果啊！
1.3
- mass noun roughness given to a surface to allow colour or glue to adhere粗糙面（颜料、胶水能黏附于上）。
1.4
teeth
figurative genuine force or effectiveness of a body or in a law or agreement〈喻〉（机构的）真正力量; （法律、协定的）真正作用, 有效性：the Charter would be fine if it had teeth and could be enforced.
如果《宪章》能有效实施的话, 那就好了。
1.5
teeth
used in curses or exclamations该死（骂人话, 感叹词）：Hell's teeth!
该死！
2
- a projecting part on a tool or other instrument, especially one of a series that function or engage together, such as a cog on a gearwheel or a point on a saw or comb（工具、器具的）齿状物。
2.1
- a projecting part on an animal or plant, especially one of a jagged or dentate row on the margin of a leaf or shell（动、植物的）齿状物（尤指叶子或贝壳边缘）。
短语
armed to the teeth
- formidably armed武装到牙齿, 全副武装。
fight tooth and nail
- fight very fiercely凶猛地打斗。
get（或sink）one's teeth into
- work energetically and productively on (a task)积极而富成效地工作; 专注于：
the course gives students something to get their teeth into.
这门课程能给学生一些值得深究的东西。
in the teeth of
1
- directly against (the wind)逆（风）。
1.1
- in spite of or contrary to (opposition or difficulty)顶着, 不顾（反对, 困难）：
we defended it in the teeth of persecution.
尽管会遭受迫害, 我们仍为其辩护。
set someone's teeth on edge
- 见EDGE.
派生词
toothed
adjectivetooth-like
adjective词源
Old English tōth （plural tēth）, of Germanic origin; related to Dutch tand and German Zahn, from an Indo-European root shared by Latin dent-, Greek odont-.