(physics) The fundamental interaction responsible for the gravitational force.

(physics) any of the fundamental forces that act between elementary particles; each one is associated with an exchanged particle

(software design) The structure and definition of the behavior of a system, the surrounding environment, corresponding artifacts, and the elements that communicate the aforementioned behavior.

(physics) The kind of interaction caused by the strong force.

That part of an electron tube in which electrons interact with a modulated field

plural of strong interaction

(physics) The fundamental interaction responsible for the weak nuclear force.

(physics) A unified description of electromagnetic interaction and weak nuclear interaction.

plural of fundamental interaction

plural of interaction space