(chemistry) Any halonium ion in which the halogen is bromine.

(chemistry) any halonium ion in which the halogen is chlorine

(chemistry) Any cation of the general formula R₂X⁺, where X is any halogen.

(chemistry) the ratio of the number of ions of a solute to the total number of molecules of that solute in a solution

(chemistry) Any cation of general formula R-O⁺.

(chemistry) the lithium salt of hydriodic acid, HI

(electrochemistry, electronics) A type of rechargeable battery used in many consumer electronics devices.

The part of the Earth's atmosphere beginning at an altitude of about 50 kilometers (31 miles) and extending outward 500 kilometers (310 miles) or more.

(physics) A technique used to visualize the three-dimensional structure of solids by employing an energetic ion beam to fragment the atomic or molecular constituents from a surface

plural of ion engine