noun
mesozoan
A taxonomic term for a group of small, simple parasitic marine animals. Used primarily in zoology and biology contexts.
中生動物は、海の無脊椎動物に寄生する小さな生物です。
Mesozoans are tiny organisms that parasitize marine invertebrates.
Composed of 中 (middle), 生 (life), and 動物 (animal), reflecting their intermediate position between protozoa and metazoa in early classification schemes. The exact historical derivation of the term is uncertain.