 horizon |
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| 1. | [ noun ] the line at which the sky and Earth appear to meet | |
| Synonyms: | visible_horizon sensible_horizon skyline apparent_horizon | |
| Related terms: | line perspective | |
| 2. | [ noun ] the range of interest or activity that can be anticipated | |
| Synonyms: | purview view | |
| Examples: | "It is beyond the horizon of present knowledge" |
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| Related terms: | scope | |
| 3. | [ noun ] a specific layer or stratum of soil or subsoil in a vertical cross section of land | |
| Related terms: | stratum geological_horizon soil_horizon profile | |
| 4. | [ noun ] (geography) the great circle on the celestial sphere whose plane passes through the sensible horizon and the center of the Earth | |
| Synonyms: | celestial_horizon | |
| Related terms: | great_circle | |
| Similar spelling: |
horizontal Hourigan Horrigan |
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