balopticon
nounEtymology From βάλλω (bállō, “throw”) + ὀπτικός (optikós, “visual”). At the same time it reflects the initials of the company Ba(usch) & L(omb) Optical.
1
Historical An early kind of stereopticon or projector.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.