Word Study
excandescent
CIDE DICTIONARY
excandescent, a. [L. excandescens, p. pr. of excandescere to take fire, glow; ex out (intens.) + candescere to begin to glisten or glow, fr. candere. See Candid.].
White or glowing with heat. Ure. [1913 Webster]
For further exploring for "excandescent" in Webster Dictionary Online