<p><strong>Noun</strong></p><ul><li>a mythical creature resembling a horse, with a single horn in the center of its forehead; often symbolic of chastity or purity.</li><li>a heraldic representation of this animal, in the form of a horse with a lion's tail and with a long, straight, and spirally twisted horn.</li><li>Unicorn, Astronomy: the constellation Monoceros.</li><li>an animal mentioned in the Bible, Deuteronomy 33:17: now believed by some to be a description of a wild ox or rhinoceros.</li><li>a former gold coin of Scotland, first issued by James III in 1486, having an obverse bearing the figure of a unicorn.</li><li>Business: a relatively new company, usually less than ten years old, that is valued at $1 billion or more by public or private investors.</li><li>a person or thing that is rare and highly valued, or is a hypothetical ideal: Finding jeans that are comfortable and fashionable—that’s my unicorn.</li><li>Slang: a bisexual woman who joins an established heterosexual couple in a sexual encounter or relationship.</li></ul>