noun, Physics, Chemistry. (in a collection of moving particles)
the average distance that a particle travels between successive collisions with other particles.
the average distance travelled by a particle, atom, etc, between collisions
The average distance that an object (usually an atom or molecule) can move before colliding with something.
- Mean gene
noun phrase An expert; maven: John, who’s a mean bean at squash and horseback riding (1980s+)
- Mean green
noun phrase Money: Mean green won out over neighborhood purity in the end (1970s+ Black)
[mee-nee] /ˈmi ni/ noun 1. Informal. . [mee-nee] /ˈmi ni/ noun, plural meanies. Informal. 1. a small-minded, petty, or malicious person: The children said their teacher was a real meany. /ˈmiːnɪ/ noun (informal) (pl) meanies 1. (mainly Brit) a miserly or stingy person 2. (mainly US) a nasty ill-tempered person /ˈmiːnɪ/ noun 1. (informal) a […]
[mee-ning-fuh l] /ˈmi nɪŋ fəl/ adjective 1. full of , significance, purpose, or value; purposeful; significant: a meaningful wink; a meaningful choice. /ˈmiːnɪŋfʊl/ adjective 1. having great meaning or validity 2. eloquent, expressive: a meaningful silence adj. 1827, from meaning (n.) + -ful. Related: Meaningfully.