1
a theoretician of [field]
of 后常接学科或研究领域，表示某领域的理论家。
She is a theoretician of modern art.
她是现代艺术的理论家。
理论家
先理解核心含义，再看它在真实句子里的用法。
理论家
a person who theorizes, especially in science or art
She is a theoretician of modern art.
她是现代艺术的理论家。
精通某一科学或艺术理论的人
Someone who is expert in the theory of a particular science or art.
提出理论的人(尤指科学或艺术领域)
someone who theorizes (especially in science or art)
理论家
A theorist.
As a theoretician, she spends most of her time developing models rather than running experiments.
作为一名理论家，她大部分时间都在建立模型，而不是做实验。
The conference brought together theoreticians and experimentalists from several countries.
这次会议汇聚了来自多个国家的理论家和实验科学家。
Few theoreticians predicted that the simple equation would have such wide applications.
很少有理论家预测到这个简单的方程会有如此广泛的应用。
of 后常接学科或研究领域，表示某领域的理论家。
She is a theoretician of modern art.
她是现代艺术的理论家。
in 后接领域，表示在这一专业范围里的理论家。
He is a theoretician in cognitive science.
他是认知科学领域的理论家。
who 引导定语从句，修饰指人的 theoretician。
A theoretician who studies language needs careful data.
研究语言的理论家需要严谨的数据。
Not this
Marie Curie was a brilliant theoretical.
Use this
Marie Curie was a brilliant theoretician.
“theoretical” 是形容词，不能用来指人；表示“理论家”的名词是 theoretician。
Not this
They are all renowned theoretician.
Use this
They are all renowned theoreticians.
theoretician 是可数名词，主语是复数时，作表语的名词也要用复数形式，因此要加 -s。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
政治理论家
As a political theoretician, she wrote several influential essays on democracy.
作为一名政治理论家，她写了几篇关于民主的有影响力的文章。
马克思主义理论家
The Marxist theoretician argued for a new approach to class analysis.
这位马克思主义理论家主张采用新的阶级分析方法。
主要理论家；杰出理论家
She is widely regarded as the leading theoretician in modern linguistics.
她被广泛认为是现代语言学领域的主要理论家。
军事理论家
The general was also a respected military theoretician.
这位将军同时也是一位受尊敬的军事理论家。
文学理论家
The literary theoretician compared modern novels with classical epic poetry.
这位文学理论家将现代小说与古典史诗进行了比较。
Use theoretician naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
开头像 theory（理论），结尾 -cian 像 musician（音乐家）：研究理论的人就是理论家。
语域：formal 常见场景：academic papers、scientific discourse、art criticism 该词多用于学术或专业讨论，比 theorist 更正式；日常口语中不常用，通常以 theorist 代替。
以上所有词都与 theoretician 押韵：它们重读元音都是 /ɪ/，紧接的 /ʃən/ 也相同（前面的辅音如 /t/、/z/、/dʒ/ 不影响押韵）。注意拼写相近的 theoretical /ˌθiəˈrɛtɪkəl/ 是容易看错却押不上韵的形似词，不要混淆。
Dictionary facts from ECDICT, WIKTIONARY.