joint

J0057200 (joint)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 joint1. 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.]

Jointing

jointing

[′jȯint·iŋ] (civil engineering) Caulking of masonry joints. (geology) A condition of rock characterized by joints. (engineering) A basic woodworking process for trueing or smoothing one surface of a workpiece by using a single peripheral cutting head in order to prepare the workpiece for further processing.

Jointing

In masonry, the finishing of joints between courses of bricks or stones before the mortar has hardened.

Jointing

a combination of fractures in rocks, along which there has been little or no movement.

Joints may be open, closed, or blind. The blocks and pieces of rock encompassed by joints are called joint blocks. Joints may be vertical, inclined, or horizontal, depending on their spatial orientation. In laminar rock strata, joints may be transverse, diagonal, or parallel relative to the strata.

Jointing may develop during the original formation of the rock (original jointing), or it may result from later exogenic or endogenic processes. Original joints form in sedimentary rock during diagenesis, accompanied by compaction and dehydration of the sediment. In magmatic rock, original contraction joints occur to compensate for the reduction in volume of cooling magmatic bodies. Exogenic processes lead to the formation of weathering joints, joints associated with expansion of the rock upon removal of loads (on the slopes and floors of river valleys and ravines), and joints accompanying the formation of landslides, cave-ins, and collapses. Shear and tension joints form during endogenic processes. Tension joints develop in the direction of maximum normal tension stresses, perpendicular to the rock tension or in the direction of its compression; they are short, with an uneven, coarse surface, and are common along the hinges of folds on the vaults of domes and limbs of fractures. Shear joints occur in the direction of maximum tangential stress at an angle of about 45° to the axis of compression or tension; they are even and straight, often have traces of grinding of rock, and extend for dozens and even hundreds of meters along and beneath the surface. Cleavage is a special form of shear joint.

REFERENCES

Belousov, V. V. Strukturnaia geologiia, 2nd ed. Moscow, 1971.
Mikhailov, A. E. Strukturnaia geologiia i geologicheskoe kartir-ovanie, 3rd ed. Moscow, 1973.

A. E. MIKHAILOV

jointing

1. In masonry, the finishing of joints between courses of bricks or stones before the mortar has hardened. 2. The machining of a true and flat surface on one face or edge of a wood member. 3. The first operation in sharpening a cutting tool, whereby the tips of all teeth or knives are ground or filed to the intended cutting circle.

单词	jointing
释义	jointing jointtop to bottom: end-lap, doweled, and spline joints joint J0057200 (joint)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 joint1. 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.] IdiomsSeejoint Jointing jointing [′jȯint·iŋ] (civil engineering) Caulking of masonry joints. (geology) A condition of rock characterized by joints. (engineering) A basic woodworking process for trueing or smoothing one surface of a workpiece by using a single peripheral cutting head in order to prepare the workpiece for further processing. Jointing In masonry, the finishing of joints between courses of bricks or stones before the mortar has hardened. Jointing a combination of fractures in rocks, along which there has been little or no movement. Joints may be open, closed, or blind. The blocks and pieces of rock encompassed by joints are called joint blocks. Joints may be vertical, inclined, or horizontal, depending on their spatial orientation. In laminar rock strata, joints may be transverse, diagonal, or parallel relative to the strata. Jointing may develop during the original formation of the rock (original jointing), or it may result from later exogenic or endogenic processes. Original joints form in sedimentary rock during diagenesis, accompanied by compaction and dehydration of the sediment. In magmatic rock, original contraction joints occur to compensate for the reduction in volume of cooling magmatic bodies. Exogenic processes lead to the formation of weathering joints, joints associated with expansion of the rock upon removal of loads (on the slopes and floors of river valleys and ravines), and joints accompanying the formation of landslides, cave-ins, and collapses. Shear and tension joints form during endogenic processes. Tension joints develop in the direction of maximum normal tension stresses, perpendicular to the rock tension or in the direction of its compression; they are short, with an uneven, coarse surface, and are common along the hinges of folds on the vaults of domes and limbs of fractures. Shear joints occur in the direction of maximum tangential stress at an angle of about 45° to the axis of compression or tension; they are even and straight, often have traces of grinding of rock, and extend for dozens and even hundreds of meters along and beneath the surface. Cleavage is a special form of shear joint. REFERENCES Belousov, V. V. Strukturnaia geologiia, 2nd ed. Moscow, 1971. Mikhailov, A. E. Strukturnaia geologiia i geologicheskoe kartir-ovanie, 3rd ed. Moscow, 1973. A. E. MIKHAILOV jointing 1. In masonry, the finishing of joints between courses of bricks or stones before the mortar has hardened. 2. The machining of a true and flat surface on one face or edge of a wood member. 3. The first operation in sharpening a cutting tool, whereby the tips of all teeth or knives are ground or filed to the intended cutting circle. FinancialSeeJoint
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