Features. 1  The VA Clinic of Fort Polk will offer Primary Care services to eligible veterans. 2  The Clinic will staff two Primary Care physicians, one Psychologist, three Registered Nurses, two Social Workers, a Registered Nutritionist, and a Pharmacist.
Full Definition of MANNA. 1. a: food miraculously supplied to the Israelites in their journey through the wilderness b: divinely supplied spiritual nourishment c: a usually sudden and unexpected source of gratification, pleasure, or gain.
Mannitol Salt Agar. Mannitol Salt Agar (MSA) is a selective and differential medium. The high concentration of salt (7.5%) selects for members of the genus Staphylococcus, since they can tolerate high saline levels. Organisms from other genera may grow, but they typically grow very weakly. MSA also contains the sugar mannitol and the pH indicator phenol red.