| LIO | club dedicated to promoting responsible citizenship and good government and community and national and international welfare |
|---|---|
| LIO | type and sole genus of the family Leiopelmatidae |
| LIO | primitive New Zealand frog with four unwebbed toes on forefeet and five on hind feet |
| LIO | primitive New Zealand frogs |
| LIO | thyroid hormone similar to thyroxine but with one less iodine atom per molecule and produced in smaller quantity |