Arm's end

the end of the arm; a good distance off.
See under Arm.

See also: Arm, Arms

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At least one growing planet sits at an arm's end. The planet's color doesn't match any atmospheric models; instead, the team thinks the emission GPI detects is from gas that's feeding the planet.
The telecoms group said it achieved more than 600,000 wholesale link-ups in the quarter to September 30, taking its wholesale arm's end user base to nearly 3.3 million.
The former state-owned telecoms group said it achieved more than 600,000 wholesale link-ups in the quarter to September 30, taking its wholesale arm's end user base to nearly 3.3 million.
By touching a part with a probe at the arm's end, a technician can measure features from within 0.001" over a 4-ft spherical working diameter to within 0.007" over a 12-ft spherical working diameter.