placoderm

ریشه

Late 19th century, from Greek 'plakoeides' (flat) + 'derma' (skin).

مثال

• The placoderm is an extinct species of armored fish.
• Fossils of placoderms have been found in many parts of the world.
• The placoderm was a dominant predator in its time.

ترکیب‌های رایج

Placoderm fossil Extinct placoderm Placoderm species