|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
aerophobia aer·o·pho·bi·a (âr'ə-fō'bē-ə)
An abnormal fear of air, especially drafts.