Meaning of INFINITESIMAL in English

INFINITESIMAL

adj. & n.

adj. infinitely or very small.

n. an infinitesimal amount. infinitesimal calculus the differential and integral calculuses regarded as one subject. infinitesimally adv.

[ mod.L infinitesimus f. INFINITE: cf. CENTESIMAL ]

Concise Oxford English dictionary.      Краткий оксфордский словарь английского языка.