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Webster 1913 Edition

Introgression

Inˊtro-gres′sion

,

Noun.

[L.

introgressus

, p. p. of

introgredi

to go in;

intro-

within +

gradi

to step, go.]

The act of going in; entrance.

Blount.

Webster 1828 Edition

Introgression

INTROGRES'SION

,

Noun.

[L. introgressio.] Entrance. [Not used.]