1. Hot or burning; causing a sensation of burning; fiery; as, ardent spirits, that is, distilled liquors; an ardent fever.

2. Having the appearance or quality of fire; fierce; glowing; shining; as, ardent eyes. Dryden.

3. Warm, applied to the passions and affections; passionate; fervent; zealous; vehement; as, ardent love, feelings, zeal, hope, temper. An ardent and impetuous race. Macaulay.

Syn. — Burning; hot; fiery; glowing; intense; fierce; vehement; eager; zealous; keen; fervid; fervent; passionate; affectionate.

ARDENTLY
Ar"dent*ly, adv.

Defn: In an ardent manner; eagerly; with warmth; affectionately; passionately.

ARDENTNESS
Ar"dent*ness, n.

Defn: Ardency. [R.]

ARDOIS SYSTEM
Ar`dois" sys"tem. (Naut.)

Defn: A widely used system of electric night signals in which a series of double electric lamps (white and red) is arranged vertically on a mast, and operated from a keyboard below.