Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun seahorse

2 senses of seahorse

Sense 1
walrus, seahorse, sea horse -- (either of two large northern marine mammals having ivory tusks and tough hide over thick blubber)
       => pinniped mammal, pinniped, pinnatiped -- (aquatic carnivorous mammal having a streamlined body specialized for swimming with limbs modified as flippers)

Sense 2
seahorse, sea horse -- (small fish with horse-like heads bent sharply downward and curled tails; swim in upright position)
       => pipefish, needlefish -- (fish with long tubular snout and slim body covered with bony plates)