Other forms: starfishes
A starfish is a sea creature shaped like a five-pointed star. A starfish in a rock pool, five arms, throw the starfish back.
It moves on hundreds of tiny tube feet, can grow a lost arm back, and eats a mussel by pushing its stomach out through its mouth and digesting the animal in its own shell. Biologists prefer sea star, since a starfish is not a fish.
1nounstarfishA sea creature shaped like a five-pointed star.
“We found a bright orange starfish in a rock pool on the beach.”
starfish is a sea creature.
Star plus fish, a plain description. Fish was long used for any sea creature, which is how the name came about.
From star + fish.
Etymology from Wiktionary, CC BY-SA