сферичность
sphaericitas [atis, f]
чужак
hospes [itis, m];
исчезновение
defectus [us, m];
augmentum [i, n];
auctus [us, m];
adaugmen [inis, n];
incrementum [i, n];
crementum [i, n] (corporum;
lunae);
accessio [onis, f];
accessus [us, m];
amplificatio [onis, f];