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| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a chattering or flighty, light-headed person. |
premolar pre·mo·lar (prē-mō'lər)
n.
Any of eight bicuspid teeth located in pairs on each side of the upper and lower jaws behind the canines and in front of the molars. Also called bicuspid.
| premolar (prē-mō'lər) Pronunciation Key
Any of eight bicuspid teeth in mammals, arranged in pairs on both sides of the upper and lower jaws between the canines and molars. Premolars are used to tear and grind food. |