Spore (noun)

1. A reproductive cell capable of developing into a new individual without fusion with another cell.
2. A small, usually single-celled, reproductive structure in certain lower plants and animals.

Origin:

From old french esporre, from latin spora ("seed, germ, spore"), from ancient greek σπορά (sporá, "seed, scattering, sowin.g")

Examples:

1. The fern plant produces spores for reproduction.
2. He looked at the spores under the microscope.
3. The spores are wind-dispersed.
4. The mushroom released its spores into the air.
5. The spores germinated into new plants.