Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups.

What is the full meaning of fish?

Rating. FISH. Fluorescence In Situ Hybridization. Medical » Human Genome -- and more...

What is a fish in simple words?

Fish (plural: fish) are an aquatic group of vertebrates which live in water and respire (get oxygen) with gills. They do not have limbs, like arms or legs, and they do have digits (fingers & toes). ... Fish used to be a class of vertebrates. Now the term covers five classes of aquatic vertebrates: Jawless fish.