trùng phương

Vietnamese

Etymology

Perhaps Sino-Vietnamese word from 重 and 方, as in a blend of trùng lặp (“to compound”) +‎ bình phương (“square”), as in "compounding a square raises the power to 4".

Pronunciation

• (Hà Nội) IPA^(key): [t͡ɕʊwŋ͡m˨˩ fɨəŋ˧˧]
• (Huế) IPA^(key): [ʈʊwŋ͡m˦˩ fɨəŋ˧˧]
• (Saigon) IPA^(key): [ʈʊwŋ͡m˨˩ fɨəŋ˧˧]

Adjective

trùng phương

1. (algebra, of a phương trình (“equation”)) biquadratic (with only the 4th and 2nd powers)