noun A basic truth, elementary concept, principle, rule, or law. An individual fundamental will often serve as a building block used to form a complex idea.
noun A collection of essential component ideas that are often grouped together to serve as the foundational basis of a complex idea.
one of the fundamentals of linear algebra
noun The lowest frequency of a periodic waveform.
noun The lowest partial of a complex tone.
adjective Related to a foundation, base, or basis; serving as a foundation.
adjective Essential; extremely important.
a fundamental truth; a fundamental axiom; a fundamental element; fundamental principle; fundamental law