diameter
UK/dai'æmitә/US
IELTSTOEFLGREB1
Definitions
n.
A straight line passing through the center of a circle from one side to the other; its length.
直径；直径的长度。
Root Breakdown
Root-deriveddia- (across, through) + meter (measure) = the measure straight across. The diameter cuts through the center of a circle, edge to edge — the longest line across it, twice the radius.
Root meter still carries 9 more wordsCommon Collocations
- 1.in diameter直径为
- 2.internal diameter内径
- 3.outer diameter外径
Example Sentences
- 1.
The pipe has a diameter of about ten centimeters.
- 2.
Measure the diameter of the wheel before ordering tires.
- 3.
The moon is roughly a quarter of Earth's diameter.