scioptic ball

English

Noun

scioptic ball (plural scioptic balls)

(photography, chiefly historical) a universal joint allowing an optical instrument mounted on a ball to be swiveled to point anywhere in a wide arc

References

“scioptic”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

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