heading
hea·ding
noun
1.
3.
a horizontal (or nearly horizontal) passageway in a mine
- “they dug a drift parallel with the vein”
Origin
From head + -ing.
Phrases
- running heading
- subject heading
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.