- large landscape seedling cultivation
- large launch vehicle mobile launch platform
- largeleaf gentian root
- largeleaf hydrangea
- largeleaf japanese ginseng rhizome
- large-leaf lantana
- Large Liquid-Aperture Mirror Array
- large lymphocyte
- Large Magellanic Cloud
- large magnetic spectrometer
- large maintenance project
- large margin
- large marine ecosystem
- large meridian method
- Large Millimeter Telescope
- large mode area fiber
- large module
- large moonflower
- largemouth bass
- largemouth bass iridovirus disease
- Largemouth bass, Youlu 1
- largemouth bronze gudgeon
- large museum
- large myotis
- largeness