Biology. The movement of an animal from one region, location, or habitat to another in order to breed, grow, or find food; an instance of this; esp.…
| 单词 | θ38386 |
| 释义 | the world > animals > birds > actions or bird defined by > [noun] > migration (25) migrationa1633 Biology. The movement of an animal from one region, location, or habitat to another in order to breed, grow, or find food; an instance of this; esp.… passage1747 The migration or migratory flight of a bird; (in later use) esp. the action of passing over or through a place in the course of migration (often in… migrating1815 = migration, n. bird migration1908 General use as a modifier with the sense ‘of, involving, or relating to birds’, as in bird book, bird chorus, bird claw, bird flight, bird migration… abmigration1923 The migration of a bird which was born and has wintered in one region to the distant summer breeding area of others of its species. Subcategories:— migratory drive (1) — route of (3) — migratory bird (12) — migratory flock (1) — that is found outside normal area of migration (2) — that does not migrate (1) |
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