cal.i.ber

caliber的音标和读音：
DJ音标发音： [ˈkæləbə]
KK音标发音： [ˈkæləbɚ]

caliber的词性：
n.（名词）

1. Abbr. cal
缩写 cal

2. The diameter of the inside of a round cylinder, such as a tube.
口径：圆柱体内侧圆的直径，如管道

3. The diameter of the bore of a firearm, usually shown in hundredths or thousandths of an inch and expressed in writing or print in terms of a decimal fraction:
口径：火器枪孔的直径，常以英寸的百分数或千分数表示，在手写或印刷中常以十进制分数表示：

.45 caliber.
.45口径

4. The diameter of a large projectile, such as an artillery shell, measured in millimeters or in inches.
弹径：大炮弹的直径，如炮弹壳，以毫米或英寸计

5. Degree of worth; quality:
品质，质量；才干；：

a school of high caliber; an executive of low caliber.
高质量的学校；能力较低的行政官

caliber的词源：

6. French calibre
法语 calibre