normal

normal
adjective

conforming to a standard; usual, typical, or expected
标准的；常见的，典范的
it's quite normal for puppies to bolt their food.
小狗囫囵吞吃食物是很常见的。
normal working hours.
常规工作时间。
■(of a person) free from physical or mental disorders
（人）正常的
(technical)(of a line, ray, or other linear feature) intersecting a given line or surface at right angles
(技)（线或线性特征）正交的，垂直的
(Medicine)(of a salt solution) containing the same salt concentration as the blood
(药)（盐溶液）与血液的盐浓度相同的
■(Chemistry dated)(of a solution) containing one gram-equivalent of solute per litre
(化旧)（溶液）当量（浓度）的
(Geology)denoting a fault or faulting in which a relative downward movement occurred in the strata situated on the upper side of the fault plane
(地质)正（断层）的

noun
[mass noun]

the usual, average, or typical state or condition
正常状态；平均状态；典型
her temperature was above normal.
她的体温超过正常温度。
the service will be back to normal next week.
这项服务下周就会恢复正常。
■[count noun]a person who is physically or mentally healthy
正常人
[count noun](technical)a line at right angles to a given line or surface
(技)法线；正交

派生
normalcy
noun

normality
noun
语源

mid 17th cent. (in the sense 'right-angled'): from Latin normalis, from norma 'carpenter's square' (see norm). Current senses date from the early 19th cent

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