One who uses rational means to get the job done.

"How much worse are they than those selected by some rational means?"

There is a rational means of deciding whether to accept them or not.

"We have a problem that cannot be resolved by rational means," Taraza said.

"A problem that cannot be resolved by rational means."

It is the way to get people to agree with an idea, attitude, or action by rational and emotional means.

It can't be solved by rational means because the rationality itself is the source of the problem.

The killings were not rational means to an end that was partly defensible.

Side effects, medical or social, are tangible entities that can be dealt with by rational means.

It may be specified that there is no rational means for determining a price.