In a stubbornly resolute manner; tenaciously holding one's opinion or course of action.

(immunology) To detect the presence of a specific antigen by the use of antibodies

Relating to photogeology.

A toy, used for hopping up and down on, consisting of a pole with a T-bar handle at one end, and spring-loaded footpads on the other. / (aviation, informal) Synonym of tailstand