contact

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contact

1. 
a. a junction of two or more electrical conductors
b. the part of the conductors that makes the junction
c. the part of an electrical device to which such connections are made
2. any person who has been exposed to a contagious disease
3. an informal name for contact lens
4. of or relating to irritation or inflammation of the skin caused by touching the causative agent

contact

See eclipse.

Contact

 

the geometric concept signifying that at a certain point, two curves (or a curve and a surface) have a common tangent line or two surfaces have a common tangent plane. The order of contact is a characteristic of the proximity of two curves (a curve and a surface, or two surfaces) in the neighborhood of their common point.

contact

[′kän‚takt]
(electricity)
(engineering)
Initial detection of an aircraft, ship, submarine, or other object on a radarscope or other detecting equipment.
(fluid mechanics)
The surface between two immiscible fluids contained in a reservoir.
(geology)
The surface between two different kinds of rocks.

contact

A part which is an electric conductor and which provides a low-resistance path for current flow upon mating with another conducting part with which it is designed to operate.

contact

i. An air traffic control term, which, when transmitted on the radio, means “Establish radio contact with … ”
ii. Visual contact by the pilot with another aircraft (friendly, hostile, or unidentified), or object, or target on the ground.
iii. To pick up the target on radar.
iv. A warning call by the pilot when starting a piston engine to the person swinging the propeller to indicate that the ignition system is about to be put on.
v. A mechanical hookup between a tanker and a receiver aircraft.
vi. The act of an aircraft touching down on a runway or another surface after being airborne, as in “the moment of contact.”
vii. Flying in weather and at an altitude from where ground features can be seen continuously, as in contact flying.

contact

A metal bar or strip in a plug or smart card that touches a corresponding metal object in a socket or reader in order to enable current to pass. Contacts may be made of precious metals to avoid corrosion. See pin and smart card.
References in periodicals archive ?
Any congenital morphologic abnormalities in size, shape, form and position of tooth leading to open proximal contact, is conducive to food impaction.
RESTORING AN IDEAL CONTACT: An intact, firm proximal contact relationships prevents the forceful wedging of food inter-proximally Protect interdental papilla.
Restoring proximal contacts with composite resin restorations JCDA Express Issue 3, 2012.
Con- temporary approach for reestablishment of proximal contacts in direct class II resin composite restorations.