发情 fāqíng be in heat Definitions Defs Origin Strokes Stroke Words Sentences Sents 1 sentence 春天是许多野生动物发情的季节。 chūntiān shì xǔduō yěshēng dòngwù fāqíng de jìjié. Spring is the mating season for many wild animals. Source: Dong Chinese Dictionary