The faint glow that seemed to emanate from the ancient mineral samples puzzled the geologists for years.
似乎从古代矿物样本中散发出的微弱光芒，多年来一直让地质学家们感到困惑。
Which choice best defines “emanate”?
A — Emerge; flow; originate. “emanate” means emerge; flow; originate.
Which word means “emerge; flow; originate”?
D — emanate. “emanate” means emerge; flow; originate.
emanate — emerge; flow; originate. In Chinese: 发出；散发.
emanate is pronounced /ˈɛməneɪt/.
The faint glow that seemed to emanate from the ancient mineral samples puzzled the geologists for years. (似乎从古代矿物样本中散发出的微弱光芒，多年来一直让地质学家们感到困惑。)
issue, originate, spring — all close in meaning to emanate (emerge; flow; originate).
absorb, terminate — each the opposite of emanate (emerge; flow; originate).
Yes. emanate is on the SAT Prep Difficult list — the higher-register words that decide the hard questions. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.
e- (out) + man (hand) + ate → spread, send out