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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. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
bristlemouth
(family Gonostomatidae), any of the approximately 25 species of marine fishes (order Stomiiformes), occurring in tropical regions of the major oceans and characterized by luminescent organs on the undersides of their bodies. They inhabit extreme depths and are often referred to as deep-sea bristlemouths.
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