Prolactin is a hormone produced in the pituitary gland, named because of its role in lactation. It also has other wide ranging functions in the body, from acting on the reproductive system to influencing behaviour and regulating the immune system.
to carry or have on the body or about the person as a covering, equipment, ornament, or the like: to wear a coat; to wear a saber; to wear a disguise. to have or use on the person habitually: to wear a wig. to bear or have in one's aspect or appearance: to wear a smile; to wear an air of triumph.
buckle. 1  a clasp consisting of a rectangular or curved rim with one or more movable tongues, fixed to one end of a belt or strap, used for fastening to the other end of the same strap or to another strap. 2  any similar contrivance used for such purposes. 3  an ornament of metal, beads, etc., of similar appearance.