雨子[amago] land-locked variety of red-spotted masu trout (Oncorhynchus masou ishikawae)
御菓子[okashi] confections
お子さん[okosan] (someone else's) child
お子様[okosama] child (someone else's)
山梔子[kuchinashi] Cape jasmine (Gardenia jasminoides)

させ子[saseko] whore
梃子摺る[tekozuru] to have much trouble
螺子回し[nejimawashi] screwdriver
硝子[garasu] glass
獅子女[sufinkusu] sphinx

瞳孔[doukou] pupil
瞳子[doushi] pupil
瞳を凝らす[hitomiwokorasu] to strain one's eyes
瞳孔拡張[doukoukakuchou] pupil dilation
瞳孔散大[doukousandai] dilation of the pupil

散瞳[sandou] mydriasis
縮瞳[shukudou] miosis
散瞳薬[sandouyaku] mydriatic agent
瞳孔縮小[doukoushukushou] pupil contraction