Relation sickens without a certain vitamin

• Vitamin A variety in medicine and cosmetics
• Form of Vitamin A
• Skin cream ingredient
• Eye cream additive
• An unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene
• Another name for vitamin A

Wiktionary Word definitions in Wiktionary
n. (context organic compound biochemistry English) A fat-soluble carotenoid vitamin (vitamin A), present in fish oils and green vegetables, essential to normal vision and to bone development.

WordNet Word definitions in WordNet
n. an unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene [syn: vitamin A1 ]

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Retinol \Ret"i*nol\, n. [Gr. ??? resin + L. oleum oil.] (Chem.) A hydrocarbon oil C32H16 , obtained by the distillation of resin, -- used as a solvent, as an antiseptic, and in printer's ink. One of the compounds which function as vitamin A. Called ...