Meaning of FUNDAMENTAL in English

FUNDAMENTAL

adj. & n.

--adj. of, affecting, or serving as a base or foundation, essential, primary, original (a fundamental change; the fundamental rules; the fundamental form).

--n.

1. (usu. in pl.) a fundamental rule, principle, or article.

2 Mus. a fundamental note or tone.

Phrases and idioms:

fundamental note Mus. the lowest note of a chord in its original (uninverted) form. fundamental particle an elementary particle. fundamental tone Mus. the tone produced by vibration of the whole of a sonorous body (opp. HARMONIC).

Derivatives:

fundamentality n. fundamentally adv.

Etymology: ME f. F fondamental or LL fundamentalis (as FUNDAMENT)

Oxford English vocab.      Оксфордский английский словарь.