The crossword solution for the term 'Puffball Bit' is 'SPORE'. A SPORE is a reproductive cell that is produced by certain types of fungi, bacteria, and algae. It is a single-celled structure that is highly resistant to environmental conditions and can survive for long periods of time. Spores are released from the parent organism and can travel through the air or water to reach a new location where they can germinate and form new organisms.