生物工学: biotechnology

青銅器時代: the Bronze Age

甘井先ず竭く: highly-skilled men are the first to be exhausted

生物学者: biologist

正百二十胞体: 120-cell; regular hecatonicosachoron

one day, 24 hours / the daytime, the period from dawn until dusk / (figuratively) a short period of time / one day, someday, an unspecified day / the first day of the month

(linear algebra) positive-definite matrix

(linear algebra) positive-semidefinite matrix

(literally) one side / everywhere, all around, the whole area / one viewpoint, one opinion or way of thinking / the front page of a newspaper

Alternative spelling of 花一匁