(~s)
A ~ of something is one of the different ways in which it can appear. (FORMAL)
Different animals in the colony had different ~s of the disease...
N-COUNT: with supp, oft N of n
(~s)
A ~ of something is one of the different ways in which it can appear. (FORMAL)
Different animals in the colony had different ~s of the disease...
N-COUNT: with supp, oft N of n
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012