- A large, warmly lined, usually zippered bag for sleeping, especially outdoors.睡袋：一种用于睡眠的，加有暖和的衬里而且通常装有拉链的大袋子，尤指用于户外
- microgamete
- microgametocyte
- microgram
- micrograph
- microgravity
- microhabitat
- microinjection
- microinstruction
- microlending
- microlith
- microliths
- microloan
- micromanage
- micromanipulator
- micromere
- micromeres
- micrometeorite
- micrometeoroid
- micrometeorology
- micrometer
- micrometries
- micrometry
- microminiaturize
- micromole
- micron