lining

plural linings

1. A covering for the inside surface of something.

   The lobule margins, furthermore, are arched away from the lobe, with the consequence that (when fully inflated) the abaxial leaf surface forms the interior lining of the lobule.

   1992, Rudolf M[athias] Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, Chicago, Ill.: Field Museum of Natural History, →ISBN, page 7

   2 more examples

   A canister of flour from the kitchen had been thrown at the looking-glass and lay like trampled snow over the remains of a decent blue suit with the lining ripped out which lay on top of the ruin of a plastic wardrobe.

   1963, Margery Allingham, “Foreword”, in The China Governess: A Mystery, London: Chatto & Windus, →OCLC

   As we age, the major arteries of our bodies frequently become thickened with plaque, a fatty material with an oatmeal-like consistency that builds up along the inner lining of blood vessels.

   2013 July-August, Stephen P. Lownie, David M. Pelz, “Stents to Prevent Stroke”, in American Scientist

2. The material used for such a covering.
3. The act of attaching such a covering.

1. gerundparticiplepresentpresent participle and gerund of line