វគ្គជំនាញកុំព្យូទ័រ
ចំណេះដឹងទូទៅ
ម្ហូបអាហារ
កំប្លែង
ទស្សន៍ទាយ
តូច
មធ្យម
ធំ
Epoch
noun
1.
(a
fixed
point
or
duration
of
time
from
which
succeeding
years
are
reckoned
,
era
,
date
,
period
,
age
, a
subdivision
of a
geologic
period
)
ជំនាន់, សម័យ, រដូវ
Example: Einstein's
theory
marked
a
new
epoch in
mathematics
.
ENGLISH MEANING
noun
1.
A
fixed
point
of
time
,
established
in
history
by the
occurrence
of
some
grand
or
remarkable
event
; a
point
of
time
marked
by an
event
of
great
subsequent
influence
; as, the epoch of the
creation
; the
birth
of
Christ
was the epoch
which
gave
rise
to the
Christian
era
.
2.
A
period
of
time
,
longer
or
shorter
,
remarkable
for
events
of
great
subsequent
influence
; a
memorable
period
; as, the epoch of
maritime
discovery
, or of the
Reformation
.
3.
A
division
of
time
characterized
by the
prevalence
of
similar
conditions
of the
earth
;
commonly
a
minor
division
or
part
of a
period
.
4.
The
date
at
which
a
planet
or
comet
has a
longitude
or
position
.
5.
An
arbitrary
fixed
date
, for
which
the
elements
used
in
computing
the
place
of a
planet
, or
other
heavenly
body
, at
any
other
date
, are
given
; as, the epoch of
Mars
;
lunar
elements
for the epoch
March
1st
,
1860
.
Synonyms
1.
age
,
antiquity
,
date
,
period
,
time