老化 (lǎo huà) — to age (of people, populations, or materials); to become outdated (of knowledge, technology, etc.)
Definition
Means 'to age' — for people/populations and for materials wearing down under use, and (metaphorically) for knowledge/tech becoming outdated. Pairs naturally with 落后, which describes falling behind, while 老化 is the process of wearing out.
verb
to age (of people, populations, or materials)to become outdated (of knowledge, technology, etc.)
Examples
- 老化。Zhè ge guó jiā de rén kǒu zhèng zài lǎo huà.The population of this country is aging.
- 老化。Tā de zhī shi yǐ jīng lǎo huà le.His knowledge has become outdated.
- 老化。Zhè zhǒng cái liào zài yáng guāng xià róng yì lǎo huà.This material ages easily under sunlight.
Appears in
Browse more HSK 7-9 words or search the full 43,000-word dictionary.