Not leaderly.

(mathematics) an inverse trigonometric function

(organic chemistry) The bicyclic heterocycle, 5,6,7,8-tetrahydro-[1,3,4]thiadiazolo[3,4-a]pyridazin-3-one that has antimicrobial activity

(uncountable, parapsychology) The ability to deliberately detach one's mind, or a ghost-like replica of one's body (one's astral body), from one's physical body and to send it to distant places or ...