វគ្គជំនាញកុំព្យូទ័រ
ចំណេះដឹងទូទៅ
ម្ហូបអាហារ
កំប្លែង
ទស្សន៍ទាយ
តូច
មធ្យម
ធំ
Phosphorus
ឃ្លាដែលទាក់ទង
organic phosphorus
-
ជាតិផូស្វ័រក្នុងសរីរាង្គ
ENGLISH MEANING
noun
1.
The
morning
star
;
Phosphor
.
2.
A
poisonous
nonmetallic
element
of the
nitrogen
group
,
obtained
as a
white
, or
yellowish
,
translucent
waxy
substance
, having a
characteristic
disagreeable
smell
. It is
very
active
chemically
,
must
be
preserved
under
water
, and
unites
with
oxygen
even
at
ordinary
temperatures
,
giving
a
faint
glow
, --
whence
its
name
. It
always
occurs
compined
,
usually
in
phosphates
, as in the
mineral
apatite
, in
bones
,
etc
. It is
used
in the
composition
on the
tips
of
friction
matches
, and for
many
other
purposes
. The
molecule
contains
four
atoms
.
Symbol
P.
Atomic
weight
31.0.
3.
Hence
,
any
substance
which
shines
in the
dark
like
phosphorus, as
certain
phosphorescent
bodies
.