spore

noun
  1. A reproductive cell or group of cells, produced by fungi, algae, plants, and some protozoans, that is capable of developing into a new individual without sexual fusion. noun
    The mushroom releases spores into the air to propagate.
    Ferns reproduce by releasing spores from the undersides of their fronds.
  2. A dormant, tough, and non-reproductive structure produced by some bacteria, which can survive in harsh conditions and later develop into a new bacterium. noun
    Bacterial spores can withstand extreme temperatures and remain viable for years.
    The laboratory technician studied the bacterial spores under the microscope.