Definitions

1. adjective

relating to or denoting a grammatical category that indicates the relationship of a verb to other verbs in its paradigm, especially in relation to tense, mood, or voice.

“The linguist studied the flectional morphology of the ancient language.”

2. noun

a grammatical category that indicates the relationship of a verb to other verbs in its paradigm.

“The flectional system of the language made it difficult for learners to master.”