What is Concentric?
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You will learn this in geometry.
Concentric means "sharing the same center". Con- = used multiple times, -Centric = center-related. (like cooperate: multiple people doing the same task)
So, it's like a dartboard or bullseye: the circles are all around the same point.
Something three-dimensional, like cylinders (water bottles, spray cans), may be coaxial.
The solar system is concentric. All the planets orbit the sun.
A properly set table has the bowls and plates concentric.
See
Random Words:
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A roommate of the opposite sex.
I don't need to take that girl to the movies. I've got some in-house booty waiting for me.
S..
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A communist dictator.
Dude #1: "You should collect food for the poor."
Dude #2: "Fuck you, you fucking commutator!"..