| 单词 | helioscope |
| 释义 | helioscope —helioscopic /hee'lee euh skop"ik/, adj. —helioscopy /hee'lee os"keuh pee/, n. /hee"lee euh skohp'/, n. a telescope for viewing the sun, adapted to protect the eye of the viewer from the sun's glare. [1665-75; HELIO- + -SCOPE] |
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