spicule
n . 針狀體,小穗,小穗狀,骨針
針狀體,小穗,小穗狀,骨針
spicule n 1 :
small pointed structure serving as a skeletal element in various marine and freshwater invertebrates e .
g .
sponges and corals [
synonym : {
spicule }, {
spiculum }]
Spicule \
Spic "
ule \,
n . [
L .
spiculum a little point ,
a dart .]
1 .
A minute ,
slender granule ,
or point .
[
1913 Webster ]
2 . (
Bot .)
Same as {
Spicula }.
[
1913 Webster ]
3 . (
Zool .)
Any small calcareous or siliceous body found in the tissues of various invertebrate animals ,
especially in sponges and in most Alcyonaria .
[
1913 Webster ]
Note :
Spicules vary exceedingly in size and shape ,
and some of those found in siliceous sponges are very complex in structure and elegant in form .
They are of great use in classification .
[
1913 Webster ]
Description of the Illustration :
[
1913 Webster ]
a Acerate ;
b Tricurvate ,
or Bowshaped ;
c d Hamate ;
e Broomshaped ;
f Scepterellate ;
g Spinispirulate ;
h Inequi -
anchorate ;
i Sexradiate ;
j A Trichite Sheaf ;
k Six -
rayed Capitate ;
l Rosette of Esperia ;
m Equi -
anchorate .
[
1913 Webster ]
21 Moby Thesaurus words for "
spicule ":
bramble ,
brier ,
bristle ,
burr ,
cactus ,
catchweed ,
cleavers ,
goose grass ,
needle ,
nettle ,
pine needle ,
prickle ,
quill ,
spiculum ,
spike ,
spikelet ,
spine ,
sticker ,
thistle ,
thorn ,
yucca
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