In the laboratory, the scientists used intense heat to fuse two pieces of glass into a single, seamless lens.
在实验室里，科学家们用高温将两块玻璃融合成一个无缝的镜片。
Which choice best defines “fuse”?
C — Join together; safety device. “fuse” means join together; safety device.
Which word means “join together; safety device”?
C — fuse. “fuse” means join together; safety device.
fuse — join together; safety device. In Chinese: 融合，保险丝.
fuse is pronounced /fjuːz/.
In the laboratory, the scientists used intense heat to fuse two pieces of glass into a single, seamless lens. (在实验室里，科学家们用高温将两块玻璃融合成一个无缝的镜片。)
merge, combine, blend — all close in meaning to fuse (join together; safety device).
separate, divide — each the opposite of fuse (join together; safety device).
Yes. fuse is on the SAT Prep Basic list — the everyday academic words the SAT assumes you already have. 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.
fuse(melt, combine)