宙

隐生宙

yǐn shēng zhòu

geological eon before the appearance of abundant fossils

显生宙

xiǎn shēng zhòu

Phanerozoic, geological eon lasting since the Cambrian 寒武紀|寒武纪[Han2 wu3 ji4], c. 540m year ago

元古宙

yuán gǔ zhòu

pre-Cambrian (geological eon 2500-645m)

元宇宙

yuán yǔ zhòu

(computing) metaverse

多元宇宙

duō yuán yǔ zhòu

multiverse (cosmology)

太古宙

tài gǔ zhòu

Archaean (geological eon before 2500m years ago)

宇宙

yǔ zhòu

universe; cosmos; space

宇宙学

yǔ zhòu xué

cosmology

宇宙射线

yǔ zhòu shè xiàn

cosmic ray

宇宙线

yǔ zhòu xiàn

cosmic ray

宇宙号

yǔ zhòu hào

Kosmos, series of earth-orbit satellites operated by the Soviet Union and subsequently Russia

宇宙观

yǔ zhòu guān

world view; conception of the universe