dem·on·stra·tor /ˈdɛmənˌstretɚ/
論證者,證明者,指示者,示威者
dem·on·stra·tor /ˈdɛmənˌstretɚ/ 名詞
示教者,示教器,示教板
Dem·on·stra·tor n.
1. One who demonstrates; specif. (a) one who proves anything with certainty, or establishes it by indubitable evidence. (b) one who shows how a certain device operates or a procedure is performed.
2. Anat. A teacher of practical anatomy.
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demonstrator
n 1: a teacher or teacher's assistant who demonstrates the
principles that are being taught
2: someone who demonstrates an article to a prospective buyer
[syn: sales demonstrator]
3: someone who participates in a public display of group
feeling [syn: protester]