Definition of IUPAC in English:

IUPAC

Line breaks: IUPAC
Pronunciation: /ˈjuːpak
 
/

abbreviation

International Union of Pure and Applied Chemistry: IUPAC welcomes comments on these recommendations

Definition of IUPAC in:

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Word of the day rebuff
Pronunciation: rɪˈbʌf
verb
reject (someone or something) in an abrupt manner…