Definify.com

Webster 1913 Edition

Adj.

[Cf. OF.

momental

[Obs.]

Lasting but a moment; brief.

Not one

momental

minute doth she swerve.

Breton.

Important; momentous.

(Mech.)

Of or pertaining to moment or momentum.

Adj.

Important. [Not in use.]

momental ‎(comparative more momental, superlative most momental)

(obsolete) Lasting only for a moment; brief.
Not one momental minute doth she swerve. — Breton.
(obsolete) important; momentous
(obsolete, engineering) Of or relating to moment or momentum.