Capacity of a prosthesis or dental restoration to maintain its intended position in function. For a removable prosthesis, the resistance to displacement in the designed path of insertion.
The amounts of previously learned material that are remembered.
The act of not letting out something, especially a fluid, which is usually released from the body, e.g. holding back urine in the bladder.
In education, keeping a student in a grade for another school year (especially in elementary school) because of failure to develop the skills, learn the material, and meet the academic standards of the grade. Because parents, students, and school officials are all for various reasons unhappy with retention, many students receive automatic promotion, regardless of their academic performance, which causes serious social problems when students are graduated without necessary skills, some of them being functionally illiterate, sometimes because undiagnosed handicaps, such as learning disabilities or ear and hearing problems, prevented learning.
Holding something inside a part, cavity, or organ, as in urinary retention.
Ability to recall; inability to defecate, urinate, or expel other bodily substances normally.
Inability to pass urine, which is retained in the bladder. The condition may be acute and painful or chronic and painless. The commonest cause is enlargement of the prostate gland in men, although many other conditions may result in obstruction of bladder outflow. Retention is relieved by catheter drainage of the bladder before dealing with the underlying problem.
The act or process of keeping in possession or of holding in place.