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Webster 1913 Edition

Adj.

[L.

sugere

suctum

, to suck.]

(Zool.)

Adapted for sucking; living by sucking;

as, the humming birds are

suctorial

birds

(Zool.)

Capable of adhering by suction;

as, the

suctorial

fishes

suctorial ‎(not comparable)

(zoology) Adapted for sucking; living by sucking.
The hummingbirds are suctorial birds.
(zoology) Capable of adhering by suction.
the suctorial fishes