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joint (joint)
Share:
n.
1.
a. A place or part at which two or more things are joined.
b. A way in which two or more things are joined: a mortise-and-tenon joint.
2. Anatomy
a. A point of articulation between two or more bones, especially such a connection that allows motion.
b. A point in the exoskeleton of an invertebrate at which movable parts join, as along the leg of an arthropod.
3. Botany An articulation on a fruit or stem, such as the node of a grass stem.
4. Geology A fracture or crack in a rock mass along which no appreciable movement has occurred.
5. A large cut of meat for roasting.
6. Slang
a. A cheap or disreputable gathering place: "The tavern is ... just a joint with Formica tables, a vinyl floor, lights over the mirrors" (Scott Turow).
b. A building or dwelling.
c. A prison. Often used with the.
7. Slang A marijuana cigarette.
8. Vulgar Slang A penis.
adj.
1. Shared by or common to two or more: our joint presence; a joint income-tax return.
2. Sharing with another or others: a joint tenant.
3. Formed or characterized by cooperation or united action: joint military maneuvers.
4. Involving both houses of a legislature: a joint session of Congress.
5. Law Regarded as one, especially with regard to tort liability or interest in property.
6. Mathematics Involving two or more variables.
tr.v. joint·ed, joint·ing, joints
1. To combine or attach with a joint or joints: securely jointed the sides of the drawer.
2. To provide or construct with joints: joint a boom on a crane.
3. To separate (meat) at the joints.
Idiom:
out of joint
1. Dislocated, as a bone.
2. Informal
a. Not harmonious; inconsistent.
b. Out of order; inauspicious or unsatisfactory.
c. In bad spirits or humor; out of sorts.

[Middle English, from Old French, from past participle of joindre, to join; see JOIN.]
(click for a larger image)
joint
top to bottom: end-lap, doweled, and spline joints

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
 

Indo-European & Semitic Roots Appendices

    Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

    Indo-European Roots

    Semitic Roots

    The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.