From Longman Dictionary of Contemporary Englishscalablescal‧a‧ble /ˈskeɪləbəl/ adjective technical if a piece of computer hardware or software is scalable, it continues to work well even if it is made bigger or connected to a larger number of other pieces of equipmentFrom Longman Business Dictionaryscalablescal‧a‧ble /ˈskeɪləbəl/ adjectiveCOMPUTING1a scalable machine, system etc can be increased in sizeWe needed a computer system that was scalable and that could keep up with our growing number of users.2scalable computer graphics can vary in size as necessary —scalability noun [uncountable]