Examlex
A ________ is a substance that speeds up a chemical reaction without itself being consumed in the reaction.
Bicycle
A human-powered, pedal-driven vehicle with two wheels attached to a frame, one behind the other.
Parallel
Describes lines, planes, or surfaces that are always the same distance apart and never intersect.
Line
In geometry, a line is an infinitely long, straight one-dimensional figure having no thickness and extending in both directions.
Point
A precise location or position in a two-dimensional or three-dimensional space, typically marked by a dot.
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