Term: porpoise: any of several small gregarious cetacean mammals having a blunt snout and many teeth
Broader: cetacean: large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales; dolphins; porpoises; narwhals | Unrelated: mole rat: African rodent resembling a mole in habits and appearance
Broader: cetacean: large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales; dolphins; porpoises; narwhals | Unrelated: mouse-ear hawkweed: European hawkweed having soft hairy leaves; sometimes placed in genus Hieracium
Broader: cetacean: large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales; dolphins; porpoises; narwhals | Unrelated: nephropsidae: in some classifications coextensive with the Homaridae
Broader: cetacean: large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales; dolphins; porpoises; narwhals | Unrelated: rush: (American football) an attempt to advance the ball by running into the line
Broader: cetacean: large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales; dolphins; porpoises; narwhals | Unrelated: tailrace: a watercourse that carries water away from a mill or water wheel or turbine
Broader: cetacean: large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales; dolphins; porpoises; narwhals | Unrelated: iridectomy: an eye operation that treats closed-angle glaucoma by surgical removal of part of the iris of the eye
Broader: cetacean: large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales; dolphins; porpoises; narwhals | Unrelated: ignition coil: an induction coil that converts current from a battery into the high-voltage current required by spark plugs
Broader: cetacean: large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales; dolphins; porpoises; narwhals | Unrelated: power hunger: a drive to acquire power
Broader: cetacean: large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales; dolphins; porpoises; narwhals | Unrelated: base pair: one of the pairs of chemical bases joined by hydrogen bonds that connect the complementary strands of a DNA molecule or of an RNA molecule that has two strands; the base pairs are adenine with thymine and guanine with cytosine in DNA and adenine with uracil and guanine with cytosine in RNA
Broader: cetacean: large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales; dolphins; porpoises; narwhals | Unrelated: appearance: pretending that something is the case in order to make a good impression