げんたん 減反 Common word LinksSentence search for 減反Sentence search for げんたんSentence search for 減段Kanji details for 減 and 反Edit in JMdict Noun, Suru verb, Transitive verb, Intransitive verb1. reduction (of crop size); reduction of acreage (under cultivation)Other forms減段 【げんたん】 Discussions Log in to talk about this word.