placoid

As adjectives the difference between placoid and ganoid

is that placoid is platelike; having irregular, platelike, bony scales, often bearing spines; pertaining to the placoids while ganoid is having a smooth, shining surface, as if polished or enameled: specifically applied to those scales or plates of fishes which are generally of an angular form and composed of a bony or hard horny tissue overlaid with enamel.

As nouns the difference between placoid and ganoid

is that placoid is any fish having placoid scales, such as the sharks while ganoid is (zoology) one of the , a disused taxonomic grouping of fishes, including the bowfin, gars, and sturgeons.

As nouns the difference between terms and placoid

is that terms is while placoid is any fish having placoid scales, such as the sharks.

As an adjective placoid is

platelike; having irregular, platelike, bony scales, often bearing spines; pertaining to the placoids.

As adjectives the difference between placid and placoid

is that placid is serene; calm while placoid is platelike; having irregular, platelike, bony scales, often bearing spines; pertaining to the placoids.

As a noun placoid is

any fish having placoid scales, such as the sharks.

As adjectives the difference between phacoid and placoid

is that phacoid is resembling a lentil; lenticular while placoid is platelike; having irregular, platelike, bony scales, often bearing spines; pertaining to the placoids.

As a noun placoid is

any fish having placoid scales, such as the sharks.

As adjectives the difference between placoid and ctenoid

is that placoid is platelike; having irregular, platelike, bony scales, often bearing spines; pertaining to the placoids while ctenoid is having a toothed margin, usually fish scales.

As nouns the difference between placoid and ctenoid

is that placoid is any fish having placoid scales, such as the sharks while ctenoid is a ctenoidean.