D defs.my
Entry 3 senses Webster, 1913

Rampant

/(rămp"ant)/ · Ramp·ant · IPA /ˈɹæm.pənt/
01 a. Ramping; leaping; springing; rearing upon the hind legs; hence, raging; furious.
  1. 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.” Milton.
  2. 2.
    Ascending; climbing; rank in growth; exuberant.
    “The rampant stalk is of unusual altitude.” I. Taylor.
  3. 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.