instantaneous
/ˌɪnstənˈteɪnjəs/adjective
1
- occurring or done in an instant or instantly瞬间发生的; 瞬间完成的：
her reaction was almost instantaneous.
她的反应几乎是瞬间作出的。
1.1
- operating or providing something instantly即刻运行的; 即刻供应的：
modern methods of instantaneous communication.
现代即时通讯方法。
2
- Physics existing or measured at a particular instant【物理】瞬时的：
measurement of the instantaneous velocity.
瞬时速度测量。
派生词
instantaneity
nouninstantaneously
adverbinstantaneousness
noun词源
mid 17th cent.: from medieval Latin instantaneus, from Latin instant- 'being at hand' （from the verb instare）, on the pattern of ecclesiastical Latin momentaneus.