Definition of "lexical" []

• Of or relating to the vocabulary, words, or morphemes of a language. (adjective)
• Of or relating to lexicography or a lexicon. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "There seems to be nothing but confusion with regards to the intricacies of a language, or what the stuffy English major in me knows as lexical content words (nouns, verbs, adjectives, adverbs) and function words (pronouns, conjunctions, determiners, prepositions etc.) - something that seems to fly over the heads of most self-professed raw watchers, especially those who claim they don't need subtitles anymore."
• "English isn’t derived from German, and New High German is quite a bit different in lexical structure from Modern English (Old High German is closer)."
• "But nearly half of the new words are not included in any dictionary and are dubbed lexical"