| 1. principle, basis, essential; fundamental note, lowest note of a chord (Music). basic, elemental; essential. fundamentalfun`da*mental , a. [cf. f. fondamental.] pertaining to the foundation or basis; serving for the foundation. hence: essential, as an element, principle, or law; important; original; elementary; as, a fundamental truth; a fundamental axiom. the fundamental reasons of this war. some fundamental antithesis in nature.fundamental bass (mus.), the root note of a chord; a bass formed of the roots or fundamental tones of the chords.fundamental chord (mus.), a chord, the lowest tone of which is its root.fundamental colors, red, green, and violet-blue. see: primary colors, under color.fundamental funda*men`tal, n. a leading or primary principle, rule, law, or article, which serves as the groundwork of a system; essential part, as, the fundamentals of the christian faith.fundamental adj |