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| pyr·a·mid [ pírrəmid ] |
noun (plural pyr·a·mids) |
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1. Egyptian tomb: a huge stone tomb of ancient Egyptian royalty with a square base and triangular walls that slope to meet in a point at the top
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2. solid triangular shape: a solid shape or structure that has triangular sides that slope to meet in a point and a base that is often, but not necessarily, a square. The volume of a pyramid is one-third of the product of the area of the base and the height of the vertex.
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3. system with expanding structure: an arrangement or system that has a small number of items at one point and expands gradually to have a large number at the opposite point
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4. pointed body part: a pointed or cone-shaped body part, e.g. either of two bundles of fibers located in the brain
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5. finance investment method: a financial risk structure that spreads investments between high, medium, and low risk
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6. finance stock speculation method: stock speculation involving a series of buying and selling of shares, with paper profits as margin for more purchases
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7. crystallography crystalline form: a crystalline form in which three or more nonparallel faces intersect all three axes of the crystal
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verb (past and past participle pyr·a·mid·ed, present participle pyr·a·mid·ing, 3rd person present singular pyr·a·mids) |
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| Definition: |
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1. intransitive verb take on pyramid shape: to take on the shape of a pyramid, with few items at one point or level and gradually increasing numbers toward the opposite point or level
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2. transitive verb finance speculate on stock: to speculate on stock by engaging in a series of buying and selling, with paper profits used as margin for the purchase of more shares of stock
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| [Mid-16th century. Via Latin< Greek puramid-] |
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