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单词 permethylated
释义

permethylatedadj.

Brit. /pəˈmɛθᵻleɪtᵻd/, U.S. /pərˈmɛθəˌleɪdᵻd/
Origin: Formed within English, by derivation. Etymons: per- prefix, methylated adj.
Etymology: < per- prefix + methylated adj.
Chemistry.
Having undergone methylation to the maximum extent; having the maximum number of methyl substituents.
ΚΠ
1937 Jrnl. Amer. Chem. Soc. 59 1955/2 Two methylations were sufficient to obtain the permethylated product.
1971 New Phytologist 70 242 More recently the separation of permethylated derivatives..of carbohydrates has been reported.
1998 Chem. in Brit. Sept. 95/2 The new HP-Chiral B capillary, which uses a stationary phase based on permethylated beta-cyclodextran, resolves optical isomers.
This is a new entry (OED Third Edition, December 2005; most recently modified version published online March 2022).
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adj.1937
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