| 词源 |
bulb n.1560s, "an onion," from French bulbe (15c.), from Latin bulbus "bulb, bulbous root, onion," from Greek bolbos "plant with round swelling on underground stem." It was extended 1660s to "spherical underground part of an onion, lily, etc." It had expanded by 1800 to "swelling in a glass tube" (thermometer bulb, light bulb, etc.). updated on October 25, 2022 |