n. 1. a. The buttocks. b. The anus. 2. The natural features of a land surface unaltered by humans. 3. A foundation, as of a building. 4. An underlying theoretical basis or principle: "All neighbor states ... must revise ... their policy fundaments" (C.L. Sulzberger). [Middle English foundement, from Old French fondement, from Latin fundāmentum, from fundāre, to lay the foundation, from fundus, bottom.] |
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