oxygen
https://gyazo.com/a5d422fdb48eaa9daebab14780794ea2
source:
By Ahazard.sciencewriter - Own work, CC BY-SA 4.0
noun
a
colorless
,
odorless
reactive
gas
, the
chemical
element
of
atomic
number 8
and the
life-supporting
component
of the
air
. Oxygen forms about 20 percent of the
earth
's
atmosphere
, and is the most
abundant
element
in the
earth
's
crust
, mainly in the form of
oxide
s,
silicate
s, and
carbonate
s. (Symbol:
O
)
〘化〙 酸素(｟記号｠ O)
DERIVATIVES
oxygenous
|äkˈsijənəs| adjective
ORIGIN
late
18th century
: from
French
(principe)
oxygène
‘
acidifying
constituent
’ (because at first it was held to be the essential component in the formation of
acid
s).