Lexcon meaning as a field of language?

"Lexicon" refers to the vocabulary or word stock of a language or a field of study. In the context of language, a lexicon is the collection of words and phrases that make up a language, including their meanings, usage, and relationships with other words. In a broader sense, lexicon can also refer to the specialized vocabulary or terminology used in a particular field or discipline, such as the lexicon of medicine or the lexicon of computer science.