Below you can find the This sign is symbolized by an arachnid that's fluorescent when exposed to ultraviolet light Jeopardy Words Answer. The answer to This sign is symbolized by an arachnid that's fluorescent when exposed to ultraviolet light has 7 letters. This clue belongs to the Astrology category and is part of Jeopardy Word Level 2513. If you scroll near the bottom you will find other clues and answers part of level 2513