Bulb



GRE TOEFL 考研

解释

GRE 红宝书

• n. 植物的球茎
• ［英］ n. 植物的球茎 ( an underground bud as in a lily, onion)
• ［记］ 比较: light bulb ( 灯泡) , bulb首先是圆的意思, 如bulbous ( 又胖又圆)

Webster Collegiate

noun

• Etymology: Middle English, from Latin bulbus, from Greek bolbos bulbous plant
• Date: 15th century
• 1.
  • a. a resting stage of a plant (as the lily, onion, hyacinth, or tulip) that is usually formed underground and consists of a short stem base bearing one or more buds enclosed in overlapping membranous or fleshy leaves
  • b. a fleshy structure (as a tuber or corm) resembling a bulb in appearance
  • c. a plant having or developing from a bulb
• 2. a bulb-shaped part; specifically a glass envelope enclosing the light source of an electric lamp or such an envelope together with the light source it encloses
• 3. a rounded or swollen anatomical structure
• 4. a camera setting that indicates that the shutter can be opened by pressing on the release and closed by ending the pressure
• ? bulbed adjective

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