1
- (of a person) tending to show feelings, especially of affection, openly（人）爱意流露的, 感情流露的。
2
- serving as conclusive evidence of something; giving proof（证据）结论性的; 提供证明的：
demonstrative evidence.
结论性证据。
2.1
- involving demonstration, especially by scientific means论证性的（尤指通过科学方法论证）：
the possibility of a demonstrative science of ethics.
伦理学作为可论证科学的可能性。
3
- Grammar (of a determiner or pronoun) indicating the person or thing referred to (e.g. this, that, those)【语法】（限定词, 代词）指示的（如this, that, those）。
- Grammar a demonstrative determiner or pronoun【语法】指示限定词; 指示代词。
派生词
demonstratively
adverbdemonstrativeness
noun词源
late Middle English （in the senses 'serving as conclusive evidence of' and 'making manifest'）： from Old French demonstratif， -ive, from Latin demonstrativus, from demonstrare 'point out' （see DEMONSTRATE）.