(food) Synonym of charred. / (steel) Synonym of blued.

simple past tense and past participle of blacken

present participle of blacken

The act or result of turning black in colour; a black stain or mark. / Any of various (dark-colored) surface treatments for metal substrates, to inhibit corrosion; on steel, generally, synonym of bluing.

(transitive, causative) To cause to be or become black. / (intransitive, ergative) To become black. / (transitive, causative) To make dirty. / To defame or sully.

Third-person singular simple present indicative form of blacken

The process of making or becoming more black (i.e. of African descent) or more characteristic of black culture.

present participle of blackenize

simple past tense and past participle of blackenize

(transitive) To increase the racially black character of.