渣
zhā
slag (in mining or smelting)
dregs
water (氵) + phonetic (查) = the dregs that settle from liquid
The water radical signals a liquid or liquid-adjacent substance — here, the murky residue that settles out of a liquid or remains after smelting. 查 gives the sound zhā; the meaning lives entirely in the water radical.
豆腐是用豆渣做成的吗？
dòufu shì yòng dòuzhā zuò chéng de ma？
Is tofu made from bean dregs?
炼钢之后会产生很多炉渣。
liàn gāng zhī hòu huì chǎn shēng hěn duō lúzhā。
After smelting steel, a lot of slag is produced.
Words with 渣
酒渣鼻
jiǔ zhā bí
rosacea (dermatological condition of the face and nose)
体育渣
tǐ yù zhā
unathletic person
胡渣
hú zhā
see 鬍碴|胡碴[hu2 cha1]
面包渣
miàn bāo zhā
breadcrumbs
人渣
rén zhā
dregs of society
土得掉渣
tǔ de diào zhā
(coll.) rustic; uncouth
学渣
xué zhā
(coll.) unenthusiastic, mediocre student
废渣
fèi zhā
industrial waste product
残渣
cán zhā
remainder
残渣余孽
cán zhā yú niè
evil elements who have escaped eradication
油渣
yóu zhā
crisp residue left after rendering animal fat; (esp.) pork cracklings
渣子
zhā zi
dregs