Definitions

1. adjective

relating to words or the study of words, especially in relation to their structure and meaning

“The lexical meaning of a sentence was determined using a complex algorithm.”

2. noun

a word or a unit of language, especially in relation to its position in a sentence or its relationship with other words

“The lexical structure of the sentence was analyzed to determine its meaning.”

3. noun

a word or a word group that is not a grammatical unit, especially in contrast to a phrase or a clause

“The lexical items in the sentence were identified and analyzed.”