каскадcataracta [ae, f];
компетентныйcompetens, ntis; peritus
эластичныйelasticus [a, um];
hypothesis [e]os / is f (Gr), opinatio [onis, f], opinio [onis, f], propositum [i, n], positio [onis, f], conjectura [ae, f]; conjectio [onis, f];