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| | Bulb of applied force |
 | | In lithic analysis, a subdivision of archaeology, a bulb of applied force (or bulb of force) is a defining characteristic of a lithic flake. |
 | | Bulbs of applied force may be distinctive, moderate, or diffuse, depending upon the force of the blow used to detach the flake, and upon the type of material used as a fabricator. |
 | | Generally, the harder the material used as a fabricator, the more distinctive the bulb of applied force. |
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