Kyūjitai form of 古動物学 (“paleozoology”)

Kyūjitai form of 古生態学: paleoecology

Kyūjitai form of 古地理学: paleogeography

Kyūjitai form of 木古内

(typography) a typestyle that mimics the look of 隷書 (reisho, “clerical script”) being stamped (thus, with broken and irregular strokes) rather than handwritten; this "ancient seal" look arose in Nara-period Japan, and has no relation to the original Chinese 篆書 (tensho, “seal script”)

(computing) computational linguistics

You should treasure every encounter, for it will never recur.

Kyūjitai form of 古気候学 (“palaeoclimatology”)

(rare, obsolete) Alternative spelling of メキシコ (“Mexico (a country)”)

Obsolete spelling of コロンビア (“Colombia (a country in South America)”)