| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
iatrogenic i·at·ro·gen·ic (ī-āt'rə-jěn'ĭk)
adj.
Induced in a patient by a physician's activity, manner, or therapy.