The average cost of building an extension in the UK is Â£27,000 for a single-storey rear extension measuring 20 square metres in ground floor area. A 20 square metre two-storey rear extension would usually cost in the region of Â£43,000.
Definition of VITAMIN C. : a water-soluble vitamin C6H8O6 found in plants and especially in fruits and leafy vegetables or made synthetically and used in the prevention and treatment of scurvy and as an antioxidant for foods âcalled also ascorbic acid.See vitamin C defined for kids.ADVERTISEMENT. a water-soluble vitamin C6H8O6 found in plants and especially in fruits and leafy vegetables or made synthetically and used in the prevention and treatment of scurvy and as an antioxidant for foods âcalled also ascorbic acid. See vitamin C defined for kids. ADVERTISEMENT.
Vitamin C or ascorbic acid is an essential nutrient. This water-soluble vitamin is important in humans for a number of reasons especially because of its antioxidant property, its function as a cofactor for importance enzymes and its role in collagen synthesis.itamin C is useful in acne treatment for two major reasons: it serves as an antioxidant and it contributes to collagen synthesis. As an antioxidant, vitamin C removes harmful free radicals and reducing them to harmless compounds.