Function: noun
Date: 1911
: an instructional device (as a chart, map, or model) that appeals chiefly to vision especially : an educational motion picture or filmstrip
Function: noun
Date: 1911
: an instructional device (as a chart, map, or model) that appeals chiefly to vision especially : an educational motion picture or filmstrip
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012