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kinetic theory in physics, the theory that the particles of all matter are in constant motion and that temperature is dependent on the speed of such motion.
kinetin a substance in many plants that promotes growth by causing cell division.
kinfolk one's relatives; kindred.
king a male head of a royal family who reigns for life as a monarch. [4 definitions]
kingbird any of several large American flycatchers, usu. gray with a white-tipped tail.
kingbolt a large, vertical, main bolt, used esp. for joining the front axle and wheels to the body of a wagon or other vehicle.
king cobra the largest of poisonous snakes, found in southeastern Asia; hamadryad.
king crab a large crab of North Pacific waters that is valued for its edible flesh; Alaskan king crab. [2 definitions]
kingdom a country that is ruled by a king or queen. [3 definitions]
kingfish any of several large marine food fish, related to drum, that are found in warm Atlantic Ocean waters. [2 definitions]
kingfisher any of numerous birds that eat fish or insects and have large strong bills, bright plumage, and usu. crested heads.
King James Version the English version of the Bible published in 1611 under the authorization of King James I; Authorized Version.
King Lear the title character and protagonist of a tragedy by William Shakespeare.
kinglet any of several small songbirds of North America and Europe with a brightly colored crown or crest.
kingly having the authority and rank of a king. [3 definitions]
kingmaker a person who is powerful enough to select, or influence the selection of, a political candidate or ruler.
kingpin the frontmost or central pin in a grouping of bowling pins. [3 definitions]
king post in carpentry, a supporting vertical post between the apex of a triangular truss and the horizontal tie beam. (Cf. queen post.)
Kings either of two books of the Old Testament that tell of the Jewish kings who reigned after David.
king salmon see chinook salmon.
King's Birthday in the UK and much of the Commonwealth, a public holiday on the second Saturday in June to officially celebrate the monarch's birthday when the monarch is a king.