roughage
n . 粗饲料,粗粮
粗饲料,粗粮
roughage n 1 :
coarse ,
indigestible plant food low in nutrients ;
its bulk stimulates intestinal peristalsis [
synonym : {
roughage },
{
fiber }]
Fiber \
Fi "
ber \,
Fibre \
Fi "
bre \,,
n . [
F .
fibre ,
L .
fibra .]
1 .
One of the delicate ,
threadlike portions of which the tissues of plants and animals are in part constituted ;
as ,
the fiber of flax or of muscle .
[
1913 Webster ]
2 .
Any fine ,
slender thread ,
or threadlike substance ;
as ,
a fiber of spun glass ;
especially ,
one of the slender rootlets of a plant . [
WordNet sense 1 ]
[
1913 Webster ]
3 .
the inherent complex of attributes that determine a person '
s moral and ethical actions and reactions ;
sinew ;
strength ;
toughness ;
as ,
a man of real fiber . [
WordNet sense 2 ]
Syn :
character ,
fibre .
[
1913 Webster WordNet 1 .
5 ]
Yet had no fibers in him ,
nor no force . --
Chapman .
[
1913 Webster ]
4 .
A general name for the raw material ,
such as cotton ,
flax ,
hemp ,
etc .,
used in textile manufactures .
[
1913 Webster ]
5 . (
Nutrition )
that portion of food composed of carbohydrates which are completely or partly indigestible ,
such as cellulose or pectin ;
it may be in an insoluble or a soluble form .
It provides bulk to the solid waste and stimulates peristalsis in the intestine .
It is found especially in grains ,
fruits ,
and vegetables .
There is some medical evidence which indicates that diets high in fiber reduce the risk of colon cancer and reduce cholesterol levels in the blood .
It is also called {
dietary fiber }, {
roughage },
or {
bulk }.
[
PJC ]
6 .
a leatherlike material made by compressing layers of paper or cloth . [
WordNet sense 3 ]
Syn :
fibre ,
vulcanized fiber .
[
WordNet 1 .
5 ]
{
Fiber gun },
a kind of steam gun for converting ,
wood ,
straw ,
etc .,
into fiber .
The material is shut up in the gun with steam ,
air ,
or gas at a very high pressure which is afterward relieved suddenly by letting a lid at the muzzle fly open ,
when the rapid expansion separates the fibers .
{
Fiber plants } (
Bot .),
plants capable of yielding fiber useful in the arts ,
as hemp ,
flax ,
ramie ,
agave ,
etc .
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