index arm

index arm

[′in‚deks ‚ärm]
(navigation)
On a marine sextant, a slender bar carrying the index; the bar pivots at the center of curvature of the arc of the sextant and carries the index and the vernier or micrometer.
References in periodicals archive ?
Measurements and indices used in the work are as defined by Roper & Voss (1983): mantle length (ML); mantle width index (MWI); fin length index (FLI); fin width index (FWI); index arm I length (AILI); index arm II length (AILII); index arm III length (AILIII); index arm IV length (AILIV) and hectocotylized arm length index (HcLI) (Tabla 1).
M2 EQUITYBITES-November 20, 2013-Barclays reportedly considers index arm sale(C)2013 M2 COMMUNICATIONS http://www.
Short-term market interest rates, including the rates most ofte used to index ARMs, rose nearly as much as long-term market rates during the first half of 1994.