Describing organisms or people that fear, avoid, or are harmed by sunlight and prefer darkness or shade.
From heliophobia + -ic (adjective-forming suffix). Creates the adjectival form to describe the quality or characteristic of fearing the sun.
Fungi are mostly heliophobic—unlike plants that need light for photosynthesis, fungi get their energy by breaking down dead matter, so many species actually produce compounds that block UV light rather than absorbing it!
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