leach 音标拼音: [l'itʃ]
vt . 过滤,萃取,水浸
vi . 滤掉
n . 过滤,过滤器,滤灰槽
过滤,萃取,水浸滤掉过滤,过滤器,滤灰槽
leach n 1 :
the process of leaching [
synonym : {
leach }, {
leaching }]
v 1 :
cause (
a liquid )
to leach or percolate 2 :
permeate or penetrate gradually ; "
the fertilizer leached into the ground " [
synonym : {
leach }, {
percolate }]
3 :
remove substances from by a percolating liquid ; "
leach the soil " [
synonym : {
leach }, {
strip }]
Leach \
Leach \,
n . (
Naut .)
See 3d {
Leech }.
[
1913 Webster ]
Leach \
Leach \,
n . [
Written also {
letch }.] [
Cf .
As .
le ['
a ]
h lye ,
G .
lauge .
See {
Lye }.]
1 .
A quantity of wood ashes ,
through which water passes ,
and thus imbibes the alkali .
[
1913 Webster ]
2 .
A tub or vat for leaching ashes ,
bark ,
etc .
[
1913 Webster ]
{
Leach tub },
a wooden tub in which ashes are leached .
[
1913 Webster ]
Leach \
Leach \,
v .
t . [
imp . &
p .
p . {
Leached };
p .
pr . &
vb .
n .
{
Leaching }.] [
Written also leech and letch .]
1 .
To remove the soluble constituents from by subjecting to the action of percolating water or other liquid ;
as ,
to leach ashes or coffee .
[
1913 Webster ]
2 .
To dissolve out ; --
often used with out ;
as ,
to leach out alkali from ashes .
[
1913 Webster ]
Leach \
Leach \,
v .
i .
To part with soluble constituents by percolation .
[
1913 Webster ]
Leach \
Leach \,
n .
See {
Leech },
a physician . [
Obs .]
[
1913 Webster ]
Leech \
Leech \,
n . [
Cf .
LG .
leik ,
Icel .
l [
imac ]
k ,
Sw .
lik boltrope ,
st [*
a ]
ende liken the leeches .] (
Naut .)
The border or edge at the side of a sail . [
Written also {
leach }.]
[
1913 Webster ]
{
Leech line },
a line attached to the leech ropes of sails ,
passing up through blocks on the yards ,
to haul the leeches by . --
Totten .
{
Leech rope },
that part of the boltrope to which the side of a sail is sewed .
[
1913 Webster ]
Leech \
Leech \,
n . [
OE .
leche ,
l [
ae ]
che ,
physician ,
AS .
l [=
ae ]
ce ;
akin to Fries .
l [=
e ]
tza ,
OHG .
l [=
a ]
hh [
imac ],
Icel .
l [
ae ]
knari ,
Sw .
l [
aum ]
kare ,
Dan .
l [
ae ]
ge ,
Goth .
l [=
e ]
keis ,
AS .
l [=
a ]
cnian to heal ,
Sw .
l [
aum ]
ka ,
Dan .
l [
ae ]
ge ,
Icel .
l [
ae ]
kna ,
Goth .
l [=
e ]
kin [=
o ]
n .]
1 .
A physician or surgeon ;
a professor of the art of healing .
[
Written also {
leach }.] [
Archaic ] --
Spenser .
[
1913 Webster ]
Leech ,
heal thyself . --
Wyclif (
Luke iv .
23 ).
2 . (
Zool .)
Any one of numerous genera and species of annulose worms ,
belonging to the order {
Hirudinea },
or Bdelloidea ,
esp .
those species used in medicine ,
as {
Hirudo medicinalis }
of Europe ,
and allied species .
[
1913 Webster ]
Note :
In the mouth of bloodsucking leeches are three convergent ,
serrated jaws ,
moved by strong muscles .
By the motion of these jaws a stellate incision is made in the skin ,
through which the leech sucks blood till it is gorged ,
and then drops off .
The stomach has large pouches on each side to hold the blood .
The common large bloodsucking leech of America ({
Macrobdella decora })
is dark olive above ,
and red below ,
with black spots .
Many kinds of leeches are parasitic on fishes ;
others feed upon worms and mollusks ,
and have no jaws for drawing blood .
See {
Bdelloidea }. {
Hirudinea },
and {
Clepsine }.
[
1913 Webster ]
3 . (
Surg .)
A glass tube of peculiar construction ,
adapted for drawing blood from a scarified part by means of a vacuum .
[
1913 Webster ]
{
Horse leech },
a less powerful European leech ({
H [
ae ]
mopis vorax }),
commonly attacking the membrane that lines the inside of the mouth and nostrils of animals that drink at pools where it lives .
[
1913 Webster ]
137 Moby Thesaurus words for "
leach ":
abate ,
abrade ,
abstract ,
bate ,
bathe ,
bleed ,
bolt ,
brew ,
chemical solution ,
clarify ,
clear ,
colliquate ,
condense ,
curtail ,
cut ,
decoagulate ,
decoct ,
decoction ,
decrassify ,
decrease ,
deduct ,
deliquesce ,
depreciate ,
depurate ,
derogate ,
detract ,
diminish ,
discharge ,
disparage ,
dissolve ,
distill ,
douche ,
drain ,
drench ,
dribble ,
drip ,
dripple ,
drop ,
drouk ,
eat away ,
edulcorate ,
effuse ,
elute ,
emit ,
erode ,
essentialize ,
excrete ,
exfiltrate ,
extract ,
extravasate ,
exudate ,
exude ,
file away ,
filter ,
filtrate ,
fluidify ,
fluidize ,
flush ,
flux ,
fuse ,
give off ,
gurgle ,
hold in solution ,
imbrue ,
imbue ,
impair ,
impregnate ,
infiltrate ,
infuse ,
infusion ,
inject ,
lave ,
leachate ,
lessen ,
liquefy ,
liquesce ,
liquidize ,
lixiviate ,
lixivium ,
macerate ,
melt ,
melt down ,
mixture ,
ooze ,
percolate ,
permeate ,
purify ,
rectify ,
reduce ,
reek ,
refine ,
remove ,
retrench ,
rinse ,
rub away ,
run ,
saturate ,
screen ,
seep ,
seethe ,
separate ,
shorten ,
sieve ,
sift ,
soak ,
sodden ,
solubilize ,
solution ,
solve ,
sop ,
souse ,
spiritualize ,
spurtle ,
steep ,
strain ,
subduct ,
sublimate ,
sublime ,
subtract ,
sweat ,
take away ,
take from ,
thaw ,
thin ,
thin out ,
transpire ,
transude ,
trickle ,
try ,
unclot ,
wash ,
waterlog ,
wear away ,
weed ,
weep ,
winnow ,
withdraw
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