a hypothetically indestructible,uncreatable,highly elastic,self-repellent,all-pervading fluid formerly thought responsible for the production,possession,and transfer of heat

• 曾被认为是使热量产生、贮存和传输的一种假想的不可破坏的、不可创造的、有高度弹性的、自斥的且到处都有的流体