(science fiction) a passageway enabling time travel

A restricted field of vision as the result of looking through some type of object or a medical condition.

(quantum mechanics) Any of several quantum mechanical effects in which a particle disobeys the laws of classical mechanics.

(physics) The transmission of light through apertures of dimension smaller than the wavelength of the light by quantum tunnelling

plural of tunnel broker

(computer networking) a service which provides a network tunnel

(anatomy) A fibro-osseous passageway on the palmar side of the wrist that connects the distal forearm to the middle compartment of the deep plane of the palm.

Alternative spelling of bridge-and-tunnel

(New York City, slang, derogatory) Of people who travel to Manhattan via bridge or tunnel from surrounding communities.

plural of bridge-and-tunneler