IPA: /ˈaɪsəˌleɪbəl/
KK: /ˈaɪsəˌleɪbəl/
Able to be separated or set apart from others.
The scientist found that the isolable strain of the virus could be studied in detail.
Isolable → It is formed from "isola" (from Latin *insula*, meaning island) and the suffix "-able" (meaning capable of). The word "isolable" means capable of being set apart or separated, much like an island is distinct from the mainland.
Think of an 'island' ('isola') that is 'capable of' being separated from everything else — that's why isolable means something that can be isolated.