跨 'to straddle' builds many cross-X words:
跨国 (transnational),
跨界 (crossover),
跨文化 (cross-cultural).
跨学科 stands before a noun, often without
的:
跨学科研究 (interdisciplinary research),
跨学科团队 (a cross-disciplinary team).
多学科 (multidisciplinary) is close in meaning.
