ARDOR, n. The quality that distinguishes love without knowledge.

Source: THE DEVIL'S DICTIONARY ((C)1911 Released April 15 1993)
 

Ardor \Ar"dor\, n. [L. ardor, fr. ardere to burn: cf. OF. ardor, ardur, F. ardeur.]

[Spelt also ardour.]

1. Heat, in a literal sense; as, the ardor of the sun's rays. [1913 Webster]

2. Warmth or heat of passion or affection; eagerness; zeal; as, he pursues study with ardor; the fought with ardor; martial ardor. [1913 Webster]

3. pl. Bright and effulgent spirits; seraphim. [Thus used by Milton.]

[1913 Webster]

Syn: Fervor; warmth; eagerness. See Fervor. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

198 Moby Thesaurus words for "ardor": Amor, Christian love, Eros, Platonic love, abandon, acquiescence, activity, admiration, adoration, affection, agape, agreeability, agreeableness, alacrity, allegiance, amenability, anger, animation, application, ardency, assiduity, assiduousness, attachment, avidity, bodily love, brio, briskness, brotherly love, calenture, caritas, charity, cheerful consent, commitment, committedness, compliance, concentration, concupiscence, conjugal love, consent, cooperativeness, curiosity, dedication, desideration, desire, devotedness, devotion, devoutness, diligence, docility, drive, eagerness, earnestness, ecstasy, elan, energeticalness, energy, enthusiasm, excitement, faith, faithful love, faithfulness, fancy, fantasy, favorable disposition, favorableness, fealty, fervency, fervidity, fervidness, fervor, fidelity, fieriness, fire, flame, fondness, forwardness, free love, free-lovism, furor, fury, galvanization, gameness, glow, goodwill, gusto, heart, heartiness, heat, heatedness, hero worship, hope, horme, hurrah, idolatry, idolism, idolization, impassionedness, impetuosity, impetus, indefatigability, industriousness, industry, intellectual curiosity, intensity, intentness, joie de vivre, keenness, laboriousness, lasciviousness, libido, life, like, liking, liveliness, love, lovemaking, loyalty, lust for learning, lustiness, married love, mettle, mind, need, passion, passionateness, perkiness, pertness, physical love, piety, pleasure, pleasure principle, pliability, pliancy, popular regard, popularity, promptness, quickening, readiness, receptive mood, receptiveness, receptivity, regard, relentlessness, relish, resolution, responsiveness, right mood, robustness, savor, sedulity, sedulousness, sentiment, seriousness, sex, sexual desire, sexual love, shine, sincerity, soul, spirit, spiritedness, spiritual love, stimulation, strenuousness, tender feeling, tender passion, thirst for knowledge, tirelessness, tractability, truelove, ungrudgingness, unloathness, unreluctance, unsparingness, urge, uxoriousness, vehemence, verve, vivacity, want, wanting, warmth, warmth of feeling, weakness, will, will and pleasure, willing ear, willing heart, willingness, wish, wish fulfillment, worship, yearning, zeal, zealousness, zest, zestfulness, zing

Source: Moby Thesaurus II by Grady Ward, 1.0
 

ardor

Source: WordNet (r) 2.0
 

Ardor \Ar"dor\, n. [L. ardor, fr. ardere to burn: cf. OF. ardor, ardur, F. ardeur.]

[Spelt also ardour.]

1. Heat, in a literal sense; as, the ardor of the sun's rays.

2. Warmth or heat of passion or affection; eagerness; zeal; as, he pursues study with ardor; the fought with ardor; martial ardor.

3. pl. Bright and effulgent spirits; seraphim. [Thus used by Milton.]

Syn: Fervor; warmth; eagerness. See Fervor.

Source: Webster's Revised Unabridged Dictionary (1913)