from
The Collaborative International Dictionary of English v.0.48
Heading \Head"ing\, n.
1. The act or state of one who, or that which, heads;
formation of a head.
[1913 Webster]
2. That which stands at the head; title; as, the heading of a
paper.
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3. Material for the heads of casks, barrels, etc.
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4. (Mining, tunneling)
(a) A gallery, drift, or adit in a mine; the vein above a
drift.
(b) The end of a drift or gallery; also, the working face
at the end of a tunnel, gallery, drift, or adit from
which the work is advanced.
[1913 Webster +RDH]
5. (Sewing) The extension of a line ruffling above the line
of stitch.
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6. (Masonry) That end of a stone or brick which is presented
outward. --Knight.
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{Heading course} (Arch.), a course consisting only of
headers. See {Header}, n. 3
(a) .
{Heading joint}.
(a) (Carp.) A joint, as of two or more boards, etc., at
right angles to the grain of the wood.
(b) (Masonry) A joint between two roussoirs in the same
course.
[1913 Webster]