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There are 22 words beginning with PLACO

placo- — pref. (Chiefly paleontology) Provided with or relating to a flat…
placode — n. A platelike thickening of the epithelial layer of an embryo…
placoid — adj. Platelike; having irregular, platelike, bony scales, often… — n. Such a scale. — n. Any fish having placoid scales, such as the sharks.
placodal — adj. Of or related to a placode.
placodes — n. Plural of placode.
placoids — n. Plural of placoid.
placozoa — n. Plural of placozoon.
placoderm — n. (Paleontology) A member of an extinct class (Placodermi) of… — adj. (Paleontology) Pertaining to the class Placodermi.
placodont — n. An extinct marine reptile of the order Placodontia.
placozoan — n. (Zoology) Any of a group of balloon-shaped marine organisms…
placozoon — n. Placozoan.
placoderms — n. Plural of placoderm.
placodioid — adj. (Of a lichen thallus) Radiating outward, with the ends of…
placodonts — n. Plural of placodont.
placoidian — n. (Zoology, dated) A placoid fish.
placozoans — n. Plural of placozoan.
placodontid — n. (Zoology) Any placodont in the family Placodontidae.
placoganoid — adj. (Zoology) Relating to the Placoganoidei, apparently a synonym…
placoidians — n. Plural of placoidian.
placodermian — adj. (Zoology) Of, or relating to, prehistoric armoured fishes…
placodontids — n. Plural of placodontid.
placodiolic␣acid — n. (Organic chemistry) An acid found in some lichens.

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