出淤泥而不染

chūyūníérbùrǎn

lit. to grow out of the mud unsullied (idiom) fig. to be principled and incorruptible

坋土

bèntǔ

(geology) silt

泥沙

níshā

silt

淤

yū

silt river sludge to silt up choked with silt variant of 瘀 yū

粉砂

fěnshā

silt

淤積

yūjī

to silt up silt sediment ooze slurry

軟泥

ruǎnní

soft mud silt sludge ooze (geology)

污泥

wūní

mud sludge

油污

yóuwū

greasy dirt sludge (from an oil spill)

汪

wāng

expanse of water ooze (onom.) bark classifier for liquids: pool, puddle

湴

bàn

mud slush ooze