phen-
pref.（前缀）
pref.（前缀）
- Variant of pheno-
pheno-的变体
phen-
prefix
(before a vowel) another name for pheno-
pheno- or (before a vowel) phen-
combining form
showing or manifesting
⇒
phenotype
indicating that a molecule contains benzene rings
⇒
phenobarbital
Origin
from Greek phaino- shining, from phainein to show; its use in a chemical sense is exemplified in phenol, so called because originally prepared from illuminating gasphen-
1
variant of pheno- especially before a vowel:
phenazine.
Related Words
- acetophenone
- benzophenone
- butyrophenone
- chlorpheniramine
- chrysophenine
- dichlorophenoxyacetic acid
phen-a word element used in chemical terms to indicate derivation from benzene, sometimes used with particular reference to phenol.
Also, (before consonants), pheno-. [Greek phaino- shining; with reference originally to products from the manufacture of illuminating gas]
phen-
combining form
or pheno-
phenol
2. containing phenyl
phenobarbital
combining form
or pheno-
ETYMOLOGY obsolete phene benzene, from French phène, from Greek phainein to show; from its occurrence in illuminating gas — more at fancy
1. related to or derived from benzenephenol
2. containing phenyl
phenobarbital
phen-
combining form
- variant spelling of
PHENO- shortened before a vowel (as in phenelzine).同PHENO- （o在元音前省略, 如phenelzine）。
1889 Pall Mall G. 29 Apr. 3/1 The coal-tar ‘analgesic’..*Phenacetin, a..white powder, which has direct action on..neuralgia, and which presumably is a narcotic.
1891 Lancet 3 Oct. 771. 1896 Allbutt's Syst. Med. I. 242The newer analgesics—antipyrin, antifebrin, and phenacetin.
1857 Miller Elem. Chem. III. 570Phenate of amyl, *Phenamylole.
1881 Athenæum 26 Mar. 433/1 On the Action of Aldehydes on *Phenanthraquinone in presence of Ammonia.
1882 Ibid. 16 Dec. 818/2A new acid and a new compound,..the desoxybenzoin of *phenanthrene.
1899 Allbutt's Syst. Med. VII. 751Some of the synthetic analgesics—*phenazone or phenacetin—are of value.
1865 Mansfield Salts 377The probability..is enhanced by the production by the same chemist of ‘*Phenetidine’, an epibase containing C2H2 more than Anisidine.
1899 J. Cagney tr. Jaksch'sClin. Diagn. vii. (ed. 4) 401The presence of phenetidin may be shown by changing it into its diazo compound. [ the urine]
1850 Q. Jrnl. Chem. Soc. III. 78*Phenetol is a colourless, very mobile liquid, lighter than water; and having an agreeable, aromatic odour.
1857 Miller Elem. Chem. III. 570Phenate of ethyl, or Phenetole.
1972 Materials & Technol. IV. 306Reaction with dimethyl or diethyl sulphate in a weakly alkaline solution gives anisole,..or phenetole, C6H5OC2H5 respectively. [ of phenol]
phen-
combining form. a benzene derivative, as in phenol, phenyl. Also, pheno- before consonants.
[< French phén- < Greek phaínein show forth (because such early substances were byproducts from the making of illuminating gas)]
phen-
combining form
or pheno-
Etymology: Greek phain-, phaino-, from phainein to show — more at fancy
1. also phaen- or phaeno-
a. : showing
< phenocryst >
b. : phaner-
< phaenogam >
2.[phene]
a. : related to benzene
< phenol >
: containing phenyl
< phenethyl >
< phenobarbital >
especially : containing two benzene rings
< phenazine >
< phenothiazine >
b. : phenol (sense 1)
< phenoxide >
or pheno-
1. also phaen- or phaeno-
a.
< phenocryst >
b.
< phaenogam >
2.
a.
< phenol >
: containing phenyl
< phenethyl >
< phenobarbital >
especially
< phenazine >
< phenothiazine >
b.
< phenoxide >