[{"Bold_text": "noun", "List Items": ["a nonmetallic element chemically resembling sulfur and tellurium, occurring in several allotropic forms, as crystalline and amorphous, and having an electrical resistance that varies under the influence of light.:Se;:78.96;:34;:(gray) 4.80 at 25°C, (red) 4.50 at 25°C."]}]