placozoann.adj.
/ˌplakəˈzəʊən/, U.S. /ˌplækəˈzoʊən/ Zoology.
A. n.
A member of the phylum Placozoa.
ΚΠ
1981 E. D. Hanson Understanding Evol. App. I. 528 Phylum Placozoa, placozoans.
1988 R. S. K. Barnes et al. Invertebrates ii. 19/1 The placozoans look and behave like large, flat, flagellated and cellular amoebae.
1999 Biosystems 54 66/2 (subheading) Changes in the shape of the placozoan at different concentrations of nutrient.
2003 Molecular Biol. & Evol. 20 130 Placozoans were originally considered the most basal metazoan phylum.
B. adj.
Of or relating to the phylum Placozoa.
ΚΠ
1997 Proc. Royal Soc. B. 264 80/2 Maintaining the corresponding structure required introduction of a non-canonical bond in the cases of the sponge, placozoan and ctenophore sequences.
1998 Proc. National Acad. Sci. U.S.A. 95 15458/1 If true, the simplicity of placozoan body architecture is secondarily derived from a more complex ancestor.
This is a new entry (OED Third Edition, June 2006; most recently modified version published online March 2022).
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n.adj.1981