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2 definitions found

From: MDBG CC-CEDICT Chinese-English Dictionary 漢英字典

 正弦 [ㄓㄥˋ ㄒㄧㄢˊ; zheng4 xian2]
 sine (of angle), written sin θ
 

From: Japanese-English Electronic Dictionary 和英電子辞書

 正弦
 せいげん
 noun (common) (futsuumeishi)
 mathematics
 sine