Meaning of INFINITESIMAL in English

INFINITESIMAL

adj. & n.

--adj. infinitely or very small.

--n. an infinitesimal amount.

Phrases and idioms:

infinitesimal calculus the differential and integral calculuses regarded as one subject.

Derivatives:

infinitesimally adv.

Etymology: mod.L infinitesimus f. INFINITE: cf. CENTESIMAL

Oxford English vocab.      Оксфордский английский словарь.