- The sport of skiing over the countryside rather than on downhill runs.越野滑雪：一种穿越乡间而不是沿着山坡滑行的滑雪运动
- macroevolution
- macrofossil
- macrogamete
- macroglobulin
- macroglobulinemia
- macroglobulinemias
- macrograph
- macrographies
- macrography
- macroinstruction
- macromere
- macromeres
- macromolecule
- macron
- macrons
- macronucleus
- macronutrient
- macrophage
- macrophages
- macrophysics
- macrophyte
- macrophytes
- macropterous
- macros
- macroscopic