major diameter

major diameter

[′mā·jər dī′am·əd·ər]
(design engineering)
The largest diameter of a screw thread, measured at the crest for an external (male) thread and at the root for an internal (female) thread.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Size and forecast of each major diameter and application segment have been provided in terms of the global and regional markets.
The matching gutta percha cone coated with the tested sealer was fitted in the lumen and cut with a sharp blade from the minor diameter, cut from the major diameter using System B at 250o C, and packed using #11 schilder endodontic pluger (Dentsply Maillefer, Ballaigues, Switzerland).
The average minor diameter observed was of 0.270 mm and 0.413 mm for the major diameter, which are higher values than what was observed by Morfis et al.
If the tunnel gate in this example were on a 45[degrees] angle, the height (major diameter) of the ellipse would be 0.096 in.
Major diameter (a) and minor diameter (b), at right angle to major, was recorded and profile diameter of islet was determined by taking square root of the product of a and b diameters.23
Most rifle barrels have a major diameter of sufficient length for this to be accomplished rearward of the barrel taper.
Measurement of dimensions: Three linear dimensions namely polar diameter ([D.sub.1]), major diameter ([D.sub.2]) and minor diameter ([D.sub.3]) for all tomatoes were measured using a Vernier Caliper (least count 0.01mm).
The chamber throat is the area that extends forward from the case neck area in the chamber to the first point of major diameter, which is land diameter.
The major diameter of the nests and the shortest distance between them were estimated with a measuring tape.
Each rotor turns independently in a cavity referred to as a "side." The tip of the rotor (major diameter) follows a helical pattern along the rotor axis generally equally distant from the rotor center.
By etching the elliptical bowtie dipole with the major diameter of [L.sub.1] and the ratio of 0.75 (AR) on the opposite plane of the lower substrate layer, the wideband impedance characteristic is achieved.

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