1
adj. exponential + noun
exponential 作形容词时通常放在名词前，表示“指数级的”。
There has been exponential growth in online learning.
在线学习经历了指数级增长。
指数的
先理解核心含义，再看它在真实句子里的用法。
指数的
of or involving exponents
There has been exponential growth in online learning.
在线学习经历了指数级增长。
用指数(基数的幂)表示的,基数常为10或e。
Expressed in terms of an exponent (power of a base), the base often being 10 or e.
变化率与变化量成比例的,或等价地,在连续固定的时间或其他参数间隔内倍增或减半的,称为指数增长或指数衰减。
Characterised by a rate of change that is proportional to the value of the varying quantity, or, equivalently, by a doubling or halving over successive fixed intervals of time or other parameter, described as exponential growth or exponential decay.
以极快的变化(尤指增长)为特征,或仅仅表示极大的数量或程度。
Characterised by a very rapid rate of change, especially increase, or merely a very large amount or degree.
To solve this problem, we need to use the exponential function on the calculator.
要解这道题，我们得在计算器上使用指数函数。
The graph of an exponential equation rises quickly as the value of x increases.
随着 x 值增大，指数方程的图像会迅速上升。
Our teacher explained the difference between linear and exponential growth on the board.
老师在黑板上讲解了线性增长和指数增长之间的区别。
exponential 作形容词时通常放在名词前，表示“指数级的”。
There has been exponential growth in online learning.
在线学习经历了指数级增长。
exponential 作名词时为可数名词，复数形式是 exponentials。
An exponential is a function of the form f(x)=a^x.
指数函数是形如 f(x)=a^x 的函数。
Not this
The growth rate was exponent.
Use this
The growth rate was exponential.
exponent 是名词，意为“指数、幂”，不能作表语修饰主语；表示“指数的”应使用形容词 exponential，be 动词后需用形容词作表语。
Not this
The exponential is 2 in this equation.
Use this
The exponent is 2 in this equation.
表示“指数（幂）”这个数值时用名词 exponent；exponential 作名词时指“指数函数”，不指具体的指数值。这是中文“指数”对应两个英语名词的常见混淆。
Not this
The virus spread with an exponential rate.
Use this
The virus spread at an exponential rate.
表达“以……的速度”时，rate 前需用介词 at，构成固定搭配 at a rate；用 with 是受中文“以”的影响，不符合英语搭配。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
指数增长
The city's population has shown exponential growth over the past decade.
过去十年该市人口呈指数增长。
指数衰减
The amount of a radioactive substance follows exponential decay.
放射性物质的量遵循指数衰减。
指数函数
In class, we learned how to graph an exponential function.
课上我们学习了如何绘制指数函数的图像。
指数分布
The exponential distribution is often used to model waiting times.
指数分布常用于模拟等待时间。
指数方程
We solved the exponential equation using logarithms.
我们用对数解了这道指数方程。
指数记数法
Scientists use exponential notation to write very large or very small numbers.
科学家用指数记数法书写非常大或非常小的数字。
人类最大的缺陷是无法理解指数函数。物理学家阿尔伯特·巴特利特的名言，常被误传为爱因斯坦；多用于警示人们忽视指数增长的危害。
The population of the city has seen exponential growth in the past decade.
这座城市的人口在过去十年中呈指数级增长。
Use exponential naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记忆联想：exponent 是“指数”，exponential 即“指数的”；指数增长成倍加速，如 2、4、8、16。
语域：mixed 常见场景：数学/科技、经济/商业、日常口语表达 该词多用于数学、经济学等正式语境，表示“指数的”或“指数函数”；也常见于日常表达中形容增长极快，此时带夸张色彩。整体语域偏正式但也较灵活，具体含义需结合搭配理解。
All six words rhyme with exponential: the stressed vowel /e/ is followed by /nʃəl/ (spelled -ential). Do not say /-entiəl/: the t+i is pronounced /ʃ/. Be careful with the lookalike 'exceptional' /ɪkˈsepʃənəl/, which has /pʃ/ instead of /nʃ/ and does not rhyme with this group.
Dictionary facts from ECDICT, WIKTIONARY.