វគ្គជំនាញកុំព្យូទ័រ
ចំណេះដឹងទូទៅ
ម្ហូបអាហារ
កំប្លែង
ទស្សន៍ទាយ
តូច
មធ្យម
ធំ
Paleozoic
noun
1.
បឋមស័ក
ENGLISH MEANING
adjective
1.
Of or
pertaining
to, or
designating
, the
older
division
of
geological
time
during
which
life
is
known
to have
existed
,
including
the
Silurian
,
Devonian
, and
Carboniferous
ages
, and
also
to the
life
or
rocks
of
those
ages
.