Dead center and In a nutshell

Dead center noun - The position of a crank when it is in line with the connecting rod and not exerting torque.

In a nutshell and dead center are semantically related. In some cases you can use "In a nutshell" instead an adjective phrase "Dead center".

In a nutshell adverb - Summed up briefly.

Dead center and in a nutshell are semantically related. Sometimes you can use "Dead center" instead an adjective phrase "In a nutshell".