(education) research project, done by Japanese schoolchildren during summer break, to be presented upon return to school

a research student (i.e. a visiting or non-matriculating graduate student) / a researcher

research association; research society / group of enthusiasts (as may be found in schools, colleges, etc)

Synonym of 黄昏 (tasogare, “dusk; twilight”) / Synonym of 黄昏時 (tasogaredoki, “dusk; twilight”)

experimental study

a radius (bone (human))

an elbow bone; an ulna

a thighbone; a femur

(Shinto): a bone woman: a female apparition who appears as a skeletal woman

Kyūjitai form of 骨髄: bone marrow