annular

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annular

[′an·yə·lər]
(mining engineering)
The space between the casing and wall of a hole or between a drill pipe and casing.

annular

Said of a ring-shaped structure or object.
References in periodicals archive ?
The cephalometric data for annularly and fronto-occipitally modified individuals were separately compared to the unmodified individuals.
Radial arrays of annularly disposed printed cells, such as rectangular patches or Jerusalem cross structures, belong to this class of metasurfaces as well.
The comb includes a plurality of teeth that are disposed substantially annularly so as to surround the discharge port.
Similarly, a newly manufactured block pallet was found to contain an average of 102 annularly threaded nails of two different lengths (1.70 x [10.sup.-3] kg per short nail and 4.46 x [10.sup.-3] kg per long nail).
The cooling air is delivered from 38 nozzles installed annularly on the side wall at a height of 14.5m (47.57ft).
Siphunculi almost as dark as head, with one proximal part tapering, 0.06-0.14 mm basal width x 0.02-0.04 mm high, bearing 10 to 19 setae, and one distal part cylindrical, 0.01-0.02 mm high x 0.03-0.06 mm wide at opening, with spines annularly ranged (Fig.