Noun
a morbid fear of spiders
Source: WordNetI suffer from arachnophobia. I don't mind the tiny spiders so much, it's the ones with their legs covered in thick hair. Leona Lewis
A person with arachnophobia may panic or feel uneasy around a spider even though most are harmless. Source: Internet
Sometimes, even an object resembling a spider can trigger a panic attack in an arachnophobia individual. Source: Internet