pre·sump·tive /prɪˈzʌmptɪv,priː-/ a. 1. 可据以推定的 The man's running away was regarded as presumptive evidence of his guilt. 那人的逃跑被视为他有罪的推定证据。 2. 以推测(或可能性)为根据的,假定的,设想的 a presumptive title to an estate 对一宗财产的假定所有权 3. (指胚胎组织开始分化为特定的组织或器官)预期的,预定的 presumptive epidermis 预期的表皮