វគ្គជំនាញកុំព្យូទ័រ
ចំណេះដឹងទូទៅ
ម្ហូបអាហារ
កំប្លែង
ទស្សន៍ទាយ
តូច
មធ្យម
ធំ
Heartwood
ENGLISH MEANING
noun
1.
The
hard
,
central
part
of the
trunk
of a
tree
,
consisting
of the
old
and
matured
wood
, and
usually
differing
in
color
from the
outer
layers
. It is
technically
known
as
duramen
, and
distinguished
from the
softer
sapwood
or
alburnum
.