Lose weight: Creating a calorie deficit that results in weight loss is hard work. Most recommendations say that to lose weight, you must exercise for at least an hour a day, five times a week. The type of exercise matters, too.
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia. hair shaft. the nongrowing portion of a hair that protrudes from the skin, that is, from the follicle. hair shaft. The keratinized portion of a hair that extends from a hair follicle beyond the surface of the epidermis.
Primary Meanings of shaft. 1  n a long rod or pole (especially the handle of an implement or the body of a weapon like a spear or arrow) 2  n a long pointed rod used as a tool or weapon. 3  n a revolving rod that transmits power or motion. 4  n the main (mid) section of a long bone. 5  n the hollow spine of a feather. 6  n obscene terms for penis.