Scientific vs. Scientifical — Which is Correct Spelling?

Of, relating to, or employing the methodology of science.

Of, or having to do with science.

Having the quality of being derived from, or consistent with, the scientific method.

In accord with procedures, methods, conduct and accepted conventions of modern science.

Of or pertaining to science; used in science; as, scientific principles; scientific apparatus; scientific observations.

Agreeing with, or depending on, the rules or principles of science; as, a scientific classification; a scientific arrangement of fossils.

Having a knowledge of science, or of a science; evincing science or systematic knowledge; as, a scientific chemist; a scientific reasoner; a scientific argument.

Of or relating to the practice of science;

Conforming with the principles or methods used in science;