Rampant /(rămp"ant)/

Ramp·ant

Rampant

a.
  1. Ramping; leaping; springing; rearing upon the hind legs; hence, raging; furious.
    The fierce lion in his kind Which goeth rampant after his prey.
    — Gower.
    [The] lion . . . rampant shakes his brinded mane.
  2. Ascending; climbing; rank in growth; exuberant.
    The rampant stalk is of unusual altitude.
  3. Rising with fore paws in the air as if attacking; -- said of a beast of prey, especially a lion. The right fore leg and right hind leg should be raised higher than the left. (Her.)

Phrases & Compounds
Rampant arch
An arch which has one abutment higher than the other
Rampant gardant
rampant, but with the face turned to the front.
Rampant regardant
rampant, but looking backward.
Rampant vault
a continuous wagon vault, or cradle vault, whose two abutments are located on an inclined plane, such as the vault supporting a stairway, or forming the ceiling of a stairway.