any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk and legumes; "a diet high in protein"
a thin coagulable fluid (similar to plasma but) containing white blood cells (lymphocytes) and chyle; is conveyed to the blood stream by lymphatic vessels
capable of being modified in form or character or strength (especially by making less extreme); "the rhythm of physiological time is not modifiable except by interference with certain fundamental processes" - Alexis Carrel
a photograph that is printed on smooth shiny paper
(of paper and fabric and leather) having a surface made smooth and glossy especially by pressing between rollers; "calendered paper"; "a dress of glossy sateen"
having a smooth, gleaming surface; "glossy auburn hair"; "satiny gardenia petals"; "sleek black fur"; "silken eyelashes"; "silky skin"; "a silklike fabric"; "slick seals and otters"
protective secretion of the mucous membranes; in the gut it lubricates the passage of food and protects the epithelial cells; in the nose and throat and lungs it can make it difficult for bacteria to penetrate the body through the epithelium