| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
gossypol gos·sy·pol (gŏs'ə-pôl', -pōl')
n.
A toxic pigment obtained from cottonseed oil and detoxified by heating, shown to inhibit sperm production.