Word
tri-
三；三倍的
tri-
- 1.
A prefix meaning three, thrice, threefold; as in tricolored,；tridentate.；A prefix (also used adjectively) denoting three proportional or；combining part, or the third degree of that to the name of which it is；prefixed; as in trisulphide, trioxide, trichloride.
pref. 三；三倍
pref. 三；三倍
In use
A triangle has three sides and three angles.
The child rides a tricycle with three wheels.
We need to triple the recipe to feed nine people.
tri- + noun
常见于几何术语
triangle
三角形
tri- + adjective
主要用于描述物体的颜色
tricolored
三色的
tri- + verb
用于数学或几何
trisect
三等分
Common mistakes
I bought tri apples.I bought three apples.
“tri-”是前缀，不能独立使用表示数字“三”；应使用数词“three”。
I need a tri-room apartment.I need a three-room apartment.
“tri-”通常用于科学或技术词汇，不用于日常表达；表示数量时应用“three”作定语。
Connections
Dictionary facts from AI_FALLBACK, ECDICT.