- (specialist)
a statement that is assumed to be true in order to test the truth of another statement 引理；辅助定理 - (
linguistics 语言学 the basic form of a word, for example the singular form of a noun or the infinitive form of a verb, as it is shown at the beginning of a dictionary entry 词根，词元（词的基本形式，如名词单数或动词的不定式形式）
Word Originlate 16th cent.: via Latin from Greek lēmma ‘something assumed’; related to lambanein ‘take’.