វគ្គជំនាញកុំព្យូទ័រ
ចំណេះដឹងទូទៅ
ម្ហូបអាហារ
កំប្លែង
ទស្សន៍ទាយ
small
medium
large
Serpula
ENGLISH MEANING
noun
1.
Any
one of
numerous
species
of
tubicolous
annelids
of the
genus
Serpula and
allied
genera
of the
family
Serpulidae
. They
secrete
a
calcareous
tube
,
which
is
usually
irregularly
contorted
,
but
is
sometimes
spirally
coiled
. The
worm
has a
wreath
of
plumelike
and
often
bright-colored
gills
around
its
head
, and
usually
an
operculum
to
close
the
aperture
of
its
tube
when
it
retracts
.