methyl 音标拼音: [m'ɛθəl]
n . 甲基,木精
甲基,木精
methyl n 1 :
the univalent radical CH3 -
derived from methane [
synonym :
{
methyl }, {
methyl group }, {
methyl radical }]
Methyl \
Meth "
yl \,
n . [
See {
Methylene }.] (
Chem .)
A univalent hydrocarbon radical , {
CH3 -},
not existing alone but regarded as an essential residue of methane ,
and appearing as a component part of many derivatives ;
as ,
methyl alcohol ,
methyl ether ,
methyl amine ,
etc . [
Formerly written also {
methule }, {
methyle },
etc .]
[
1913 Webster ]
{
Methyl alcohol } (
Chem .),
a light ,
volatile ,
inflammable liquid , {
CH3 .
OH },
obtained by the distillation of wood ,
and hence called {
wood alcohol }
or {
wood spirit };
tecnically referred to as {
methanol }; --
called also {
methol }, {
carbinol },
etc .
{
Methyl amine } (
Chem .),
a colorless ,
inflammable ,
alkaline gas , {
CH3 .
NH2 },
having an ammoniacal ,
fishy odor .
It is produced artificially ,
and also occurs naturally in herring brine and other fishy products .
It is regarded as ammonia in which a third of its hydrogen is replaced by methyl ,
and is a type of the class of substituted ammonias .
{
Methyl ether } (
Chem .),
a light ,
volatile ether {
CH3 .
O .
CH3 },
obtained by the etherification of methyl alcohol ; --
called also {
methyl oxide }
or {
dimethyl ether }.
{
Methyl green }. (
Chem .)
See under {
Green },
n .
{
Methyl orange }. (
Chem .)
See {
Helianthin }.
{
Methyl violet } (
Chem .),
an artificial dye ,
consisting of certain methyl halogen derivatives of rosaniline .
[
1913 Webster ]
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Methyl group | chemistry | Britannica