I. -shən ə l, -shnəl adjective
1. : of or relating to kinship
relational duties
2. : characterized by or constituted by relations
relational nature of space
the form of propositions we classify as relational is expressed as a function of two or more arguments — Alice Ambrose & Morris Lazerowitz
relational anatomy
relational plant morphology
3. : having the function chiefly of indicating a relation of syntax
relational words
— distinguished from notional
II. adjective
: relating to, using, or being a method of organizing data in a database so that it is perceived by the user as a set of tables