A bulb is a fascinating plant structure with various meanings:
1. Botanical Bulb:
A resting stage of certain plants (like lilies, onions, hyacinths, or tulips) that typically forms underground. It consists of a short stem base bearing one or more buds enclosed in overlapping membranous or fleshy leaves.
Examples include tulip bulbs and onion bulbs.
2. Light Bulb:
The glass envelope that encloses the light source in an electric lamp. When electricity passes through it, it emits light.
LED bulbs and standard light bulbs fall into this category.
3. Anatomical Bulb:
A rounded or swollen structure found in anatomy.
For instance, the bulb of a thermometer.
4. Camera Setting:
A setting that indicates the shutter can be opened by pressing the release and closed by releasing the pressure.