terpene
n . 松烯
松烯
terpene n 1 :
an unsaturated hydrocarbon obtained from plants Terpene \
Ter "
pene \,
n . [
See {
Turpentine }.] (
Chem .)
Any one of a series of isomeric hydrocarbons of pleasant aromatic odor ,
occurring especially in coniferous plants and represented by oil of turpentine ,
but including also certain hydrocarbons found in some essential oils .
[
1913 Webster ]
Turpentine \
Tur "
pen *
tine \ (
t [^
u ]
r "
p [
e ^]
n *
t [
imac ]
n ),
n . [
F .
t ['
e ]
r ['
e ]
benthine ,
OF .
also turbentine ;
cf .
Pr .
terebentina ,
terbentina ,
It .
terebentina ,
trementina ;
fr .
L .
terebinthinus of the turpentine tree ,
from terebinthus the turpentine tree .
Gr .
tere `
binqos ,
te `
rminqos .
See {
Terebinth }.]
A semifluid or fluid oleoresin ,
primarily the exudation of the terebinth ,
or turpentine ,
tree ({
Pistacia Terebinthus }),
a native of the Mediterranean region .
It is also obtained from many coniferous trees ,
especially species of pine ,
larch ,
and fir .
[
1913 Webster ]
Note :
There are many varieties of turpentine .
Chian turpentine is produced in small quantities by the turpentine tree ({
Pistacia Terebinthus }).
Venice ,
Swiss ,
or larch turpentine ,
is obtained from {
Larix Europaea }.
It is a clear ,
colorless balsam ,
having a tendency to solidify .
Canada turpentine ,
or Canada balsam ,
is the purest of all the pine turpentines (
see under {
Balsam }).
The Carpathian and Hungarian varieties are derived from {
Pinus Cembra }
and {
Pinus Mugho }.
Carolina turpentine ,
the most abundant kind ,
comes from the long -
leaved pine ({
Pinus palustris }).
Strasburg turpentine is from the silver fir ({
Abies pectinata }).
[
1913 Webster ]
{
Oil of turpentine } (
Chem .),
a colorless oily hydrocarbon ,
{
C10H16 },
of a pleasant aromatic odor ,
obtained by the distillation of crude turpentine .
It is used in making varnishes ,
in medicine ,
etc .
It is the type of the terpenes and is related to cymene .
Called also {
terebenthene }, {
terpene },
etc .
{
Turpentine moth } (
Zool .),
any one of several species of small tortricid moths whose larvae eat the tender shoots of pine and fir trees ,
causing an exudation of pitch or resin .
{
Turpentine tree } (
Bot .),
the terebinth tree ,
the original source of turpentine .
See {
Turpentine },
above .
[
1913 Webster ]
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