Centaurs

n. fabled monster being half man and half horse (Greek Mythology)

In Greek mythology, the Centaurs (Greek: Κένταυροι) are a race of creatures composed of part human and part horse. In early Attic vase-paintings, they are depicted as the torso of a human joined at the (human's) waist to the horse's withers, where the horse's neck would be.This half-human and half-animal composition has led many writers to treat them as liminal beings, caught between the two natures, embodied in contrasted myths, and as the embodiment of untamed nature, as in their battle with the Lapiths, or conversely as teachers, like Chiron.The centaurs descended from Centaurus, who mated with the Magnesian mares. Centaurus was the son of either Ixion and Nephele (the cloud made in the image of Hera) or of Apollo and Stilbe, daughter of the river god Peneus. In the latter version of the story his twin brother was Lapithus, ancestor of the Lapiths, thus making the two warring peoples cousins.
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Noun
1. (classical mythology) a mythical being that is half man and half horse
(hypernym) mythical monster, mythical creature
(classification) classical mythology

[Greek] The centaurs of Greek mythology are creatures that are part human and part horse. They are usually portrayed with the torso and head of a human, and the body of a horse. Centaurs are the followers of the wine god Dionysus and are well known for drunkenness and carrying off helpless young maidens. They inhabited Mount Pelion in Thessaly, northern Greece. According to one myth, they are the offspring of Ixion, the king of Lapithae (Thessaly), and a cloud. He had arranged a tryst with Hera, but Zeus got wind of it and fashioned a cloud into Hera's shape. Therefore, the Centaurs are sometimes called Ixionidae. Notorious is their bestial behavior on the wedding of Pirithous, king of the Lapiths. They violated the female guests and attempted to abduct the bride. What followed was a bloody battle, after which they were driven from Thessaly. An exception was the kind and wise centaur Chiron, the teacher of the Greek heroes Jason and Achilles.

Centaurs (Greek) Greek mythology preserves legends of monsters, half man, half horse, located in wild spots in Greece. "See, for comparison, the account of creation by Berosus (Alexander Polyhistor) and the hideous beings born from the two-fold principle (Earth and Water) in the Abyss of primordial creation: Neras [Naras] (Centaurs, men with the limbs of horses and human bodies), and Kimnaras (men with the heads of horses) created by Brahma in the commencement of the Kalpa" (SD 2:65). The centaurs were also said to be the offspring of Ixion, king of the Lapith people, and a cloud shaped like Hera, sent by Zeus to test his wickedness; or as being offsprings of Ixion's son and mares. They were considered a rude, wild race living in the mountains of Thessaly.
From another standpoint, however, Greek mythology represents the centaurs as being wiser than men: thus Chiron, son of Kronos and Philyra, most famous of the Centaurs, is a teacher not only of the heroes, but instructed Apollo and Diana in hunting, medicine, music, and the art of prophecy. Later, centaurs were shown as forming part of the following of Dionysus.