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.
The definition of a shaft is a long, narrow handle or a long narrow part of something, a sudden bolt of light or a sudden flash of some feeling. The long narrow handle of a golf club is an example of a shaft. A long narrow mine shaft or a vertical elevator shaft are both examples of a shaft. A sudden bolt of lightening is an example of a shaft of lightening. A sudden flash of happiness is an example of a shaft of happiness.