VITAMIN D Definition & Meaning

vitamin D

noun

any of the several fat-soluble, antirachitic vitamins D 1 , D 2 , D 3 , occurring in milk and fish-liver oils, especially cod and halibut, or obtained by irradiating provitamin D with ultraviolet light, essential for the formation of normal bones and teeth.

vitamin D

noun

any of the fat-soluble vitamins, including calciferol and cholecalciferol, occurring in fish-liver oils (esp cod-liver oil), milk, butter, and eggs: used in the treatment of rickets and osteomalacia

vitamin D

Any of a group of fat-soluble sterols necessary for normal bone growth, especially vitamin D 2 ( ergocalciferol ) and vitamin D 3 ( cholecalciferol ). Vitamin D is found in milk, fish, and eggs and can be produced in the skin on exposure to sunlight. A deficiency of vitamin D in the diet causes rickets in children.

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�y��vlog History and Origins

Origin of vitamin D¹

First recorded in 1920–25

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Example Sentences

Examples have not been reviewed.

I’d want her to take vitamin D supplements and collagen as a routine.

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Nutritionally, mushrooms are great sources of fiber and vitamin D and wild forage mushrooms reportedly have more added benefits.

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However, the evidence around vitamin D is hotly debated rather than being a firm no.

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In particular, not getting enough of three essential nutrients — vitamin D, vitamin B12 and omega-3 fatty acids — is linked to low energy levels.

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Next, many milk products are fortified with vitamin D, which has been shown to have anti-cancer properties and may help regulate cell growth and division.

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