Rehabilitation Services. Orthopaedics & Sports Medicine Owensboro (OSMO) is the premier provider of orthopaedic and rehabilitation services in northwest Kentucky. We offer a multi-disciplinary approach to rehab that includes a treatment plan tailored to meet the unique needs of each patient.
Definition of ageâgrade. 1  1 : a group of persons of the same sex and approximately the same age having certain definite duties and privileges in common and constituting a division of a tribe or society. 2  2 : a stage (as boyhood, adolescence, or manhood) through which an age-grade passes.
Definition of grade for English Language Learners. : 1  a level of study that is completed by a student during one year. : 2  the students in the same year of study at a school. : 3  a number or letter that indicates how a student performed in a class or on a test.