有损

to be harmful (to)

to have; there is / (bound form) having; with; -ful; -ed; -al (as in 有意[you3 yi4] intentional)

to decrease / to lose / to damage / to harm / (coll.) to speak sarcastically / to deride / caustic / mean / one of the 64 hexagrams of the Book of Changes (䷨)

to decrease; to lose / to damage; to harm / (coll.) to ridicule; to deride / (coll.) caustic; sarcastic; nasty; mean / one of the 64 hexagrams of the Book of Changes: ䷨

(computing) lossy compression