ratsbane
n . 杀鼠药
杀鼠药
ratsbane n 1 :
a white powdered poisonous trioxide of arsenic ;
used in manufacturing glass and as a pesticide (
rat poison )
and weed killer [
synonym : {
arsenic }, {
arsenic trioxide }, {
arsenous anhydride }, {
arsenous oxide }, {
white arsenic }, {
ratsbane }]
Ratsbane \
Rats "
bane `\ (
r [
a ^]
ts "
b [=
a ]
n `),
n . [
Rat bane .]
Rat poison ;
white arsenic .
[
1913 Webster ]
Arsenic \
Ar "
se *
nic \ ([
aum ]
r "
s [-
e ]*
n [
i ^]
k ;
277 ),
n . [
L .
arsenicum ,
Gr . '
arseniko `
n , '
arreniko `
n ,
yellow orpiment ,
perh .
fr . '
arseniko `
s or better Attic '
arreniko `
s masculine ,
'
a `
rrhn male ,
on account of its strength ,
or fr .
Per .
zern [
imac ]
kh :
cf .
F .
arsenic .]
1 . (
Chem .)
One of the elements ,
a solid substance resembling a metal in its physical properties ,
but in its chemical relations ranking with the nonmetals .
It is of a steel -
gray color and brilliant luster ,
though usually dull from tarnish .
It is very brittle ,
and sublimes at 356 [
deg ]
Fahrenheit .
It is sometimes found native ,
but usually combined with silver ,
cobalt ,
nickel ,
iron ,
antimony ,
or sulphur .
Orpiment and realgar are two of its sulphur compounds ,
the first of which is the true arsenicum of the ancients .
The element and its compounds are active poisons .
Specific gravity from 5 .
7 to 5 .
9 .
Atomic weight 75 .
Symbol As .
[
1913 Webster ]
2 . (
Com .)
Arsenious oxide or arsenious anhydride ; --
called also {
arsenious acid }, {
white arsenic },
and {
ratsbane }.
[
1913 Webster ]
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