[syn: ablaze(p), inflamed, reddened]
The Collaborative International Dictionary of English v.0.48:
Redden \Red"den\ (r?d"d'n), v. t. [imp. & p. p. Reddened
   (-d'nd); p. pr. & vb. n. Reddening.] [From Red, a.]
   To make red or somewhat red; to give a red color to.
   [1913 Webster]
WordNet (r) 3.0 (2006):
reddened
    adj 1: (especially of the face) reddened or suffused with or as
           if with blood from emotion or exertion; "crimson with
           fury"; "turned red from exertion"; "with puffy reddened
           eyes"; "red-faced and violent"; "flushed (or crimson)
           with embarrassment" [syn: crimson, red, reddened,
           red-faced, flushed]
    2: lighted with red light as if with flames; "streets ablaze
       with lighted Christmas trees"; "the inflamed clouds at
       sunset"; "reddened faces around the campfire" [syn:
       ablaze(p), inflamed, reddened]