(mineralogy) crystal / (gemstone): a crystal

jailer

Sanskrit (language)

Synonym of リス (risu) above / name of a hair color of a horse; grey with tinges of brown / Short for 栗鼠色 (kurinezumi-iro): a brownish colour, as of a squirrel's fur

pharmacology

chestnut color, often applied to a horse's coat

(archaic, possibly obsolete) Same as こま (koma) above

Christmas card

stye, sty (bacterial infection of the eyelash or eyelid)

Kyūjitai form of 薬理学 (pharmacology)