-mercomb. form²

Primary stress is retained by the usual stressed syllable of the preceding element and vowels may be reduced accordingly; see e.g. monomer n.

Origin: A borrowing from Greek; partly modelled on a German lexical item, and partly modelled on a French lexical item. Etymon: Greek -μερής.

Etymology: < ancient Greek -μερής (see -mere comb. form), after German -mer, French -mère. Compare -mere comb. form.The earliest English words with this terminal element are either loans < German or French (the first being isomer n., polymer n., adopted in the mid 19th cent.) or based on German or French models (e.g. metamer n.¹). English formations are found from the early 20th cent.

Chemistry and Biochemistry.

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1. Forming nouns denoting particular kinds of polymer (as dimer n., oligomer n.) or isomer (as epimer n., tautomer n.).

2. With prefixed numeral (in full form or (more usually) as digits), forming nouns denoting polymers consisting of a given number of units (as 9-mer, 16-mer).

ΚΠ

1975 Nature 18 Sept. 178/1 Higher molecular weight products (16-mer and higher) also occur.

1990 Internat. Immunol. 2 1101/1 Oligonucleotide 3, a sense strand 35-mer, was designed from a unique sequence..encoding the β₇ subunit.

1990 Nucleic Acids Res. 18 261/2 Using yeast codon usage data, a sense strand 64-fold degenerate 44-mer oligonucleotide was made.

1998 Chem. & Biol. (Electronic ed.) 5 The nine-mer amphiphilic peptoids.

This entry has been updated (OED Third Edition, September 2001; most recently modified version published online December 2018).

单词	-mer
释义	-mercomb. form² Primary stress is retained by the usual stressed syllable of the preceding element and vowels may be reduced accordingly; see e.g. monomer n. Origin: A borrowing from Greek; partly modelled on a German lexical item, and partly modelled on a French lexical item. Etymon: Greek -μερής. Etymology: < ancient Greek -μερής (see -mere comb. form), after German -mer, French -mère. Compare -mere comb. form.The earliest English words with this terminal element are either loans < German or French (the first being isomer n., polymer n., adopted in the mid 19th cent.) or based on German or French models (e.g. metamer n.¹). English formations are found from the early 20th cent. Chemistry and Biochemistry. Categories » 1. Forming nouns denoting particular kinds of polymer (as dimer n., oligomer n.) or isomer (as epimer n., tautomer n.). 2. With prefixed numeral (in full form or (more usually) as digits), forming nouns denoting polymers consisting of a given number of units (as 9-mer, 16-mer). ΚΠ 1975 Nature 18 Sept. 178/1 Higher molecular weight products (16-mer and higher) also occur. 1990 Internat. Immunol. 2 1101/1 Oligonucleotide 3, a sense strand 35-mer, was designed from a unique sequence..encoding the β₇ subunit. 1990 Nucleic Acids Res. 18 261/2 Using yeast codon usage data, a sense strand 64-fold degenerate 44-mer oligonucleotide was made. 1998 Chem. & Biol. (Electronic ed.) 5 The nine-mer amphiphilic peptoids. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online December 2018). < comb. form²1975
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-mercomb. form2

-mercomb. form²