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Webster 1913 Edition

(-shal)

Adj.

Containing a reference; pointing to something out of itself;

as, notes for

referential

use

–

Refˊer-en′tial-ly

adv.

referential ‎(not comparable)

Of a word or phrase applied to a particular person, place, or thing and not to any other.
Serving as a reference.

serving as a reference