episcotister.
/uh-pis-kuh-tis-ter, ep-i-skuh-tis-ter/US // əˈpɪs kəˌtɪs tər, ˌɛp ɪ skəˈtɪs tər //
埙篪,埙篪篪
Definitions
n.noun · 名词
- 1.
- ›a disk with a sector removed that when rotated in front of a light source allows the periodic passage of flashes of light: used in studying the motion of a body.
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