ball-indicator

ball indicator

Dictionary.com Unabridged

bank indicator

noun Aeronautics.
a flight instrument that measures the angle of roll about an aircraft's horizontal axis, thereby indicating whether or not the aircraft is skidding or slipping.
Also called ball indicator, slip indicator.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To ball-indicator
00:10
Ball-indicator is always a great word to know.
So is interrobang. Does it mean:
a gadget; dingus; thingumbob.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
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