1. plural of mesozoan; small, parasitic marine animals of the phylum Mesozoa, typically found in the kidneys or reproductive organs of cephalopods and other marine creatures.
Usage: biology; zoology; technical

Examples

• Mesozoans are microscopic organisms that live as parasites in marine animals.
• The classification of mesozoans has been debated among marine biologists for decades.
• Researchers discovered mesozoans inhabiting the kidney tissues of the squid specimen.
• Mesozoans represent an unusual branch of animal evolution with simplified body structures.
• The study of mesozoans provides insights into parasitic adaptation in ocean ecosystems.