Artery

To dream that your arteries are clogged, indicates that some aspect of your personality is hindering your progress.
To dream that your artery is severed, suggests that you still have a lot to learn in life. ...

Radial, Radial artery, radial asymmetry, radial engine, radial keratotomy, radial nerve, radial pulse, radial symmetry, radial tire, radial vein, Radiale, Radially, radially symmetrical, radial-ply, radial-ply tire, radian, radiance, radiancy, ...

To dream that your artery is severed, suggests that you still have a lot to learn in life.
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An archway, particularly when cut through a green hedge, is a pun on artery and therefore implies your circulation system.
Arena
An arena symbolizes conflict either within yourself or with others.

I had a dream last week that i was in a swimming pool and this shark was eating the artery out of my neck but in a really calming voice it was talking to me saying "shhhhhhhhhh 5...4...3...2...1.." an...[More of this dream] ...

From thence, sensation is radiated into every nerve-centre of the great body, and the waves of the life-essence flow into each artery and vein. . . . The planets are its limbs and pulses" (SD 1:541).

See also: Dream, Dictionary, Match, Lane, Alley