extender

中文： 扩展器、延长器、增量剂

1. One who extends.
2. Any of various substances designed to extend any of several properties of a material.
3. Any of various components designed to extend the length of a device.
4. Any substance added to food to bulk it out, with a higher protein content than a filler. · Soy protein is used as a meat extender.
5. A runner, or quick-draw.
6. A phrase that extends an expression to include further members of a set, e.g. "and stuff", "or something".

复数 extenders