capping [`kap·iŋ] ENGINEERING Preparation of a capped fuse. GEOLOGY 1. Consolidated barren rock overlying a mineral or ore deposit. 2. See <<gossan>> MINING ENGINEERING The attachment at the end of a winding rope. MOLECULAR BIOLOGY Addition of a methylated cap to eukaryotic messenger ribonucleic acid molecules. PETROLEUM ENGINEERING 1. The process of sealing or covering a borehole such as an oil or gas well. 2. The material or device used to seal or cover a borehole. |