Definition of: spore

(spôr, spōr) noun
1. Bot. The reproductive body in flowerless plants, but containing no embryo. They are free, usually single–celled and highly resistant bodies, produced externally or in some closed sac or cavity, and are capable of developing at once or after a time into an independent organism or individual.
2. A minute body that develops into a new individual; any minute organism; a germ.
—v.i. spored, spor·ing To develop spores: said of plants. [<Gk. spora seed, sowing]
—spo·ra·ceous (spô·rā′shəs, spō-) adjective