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1. The touching or apposition of two bodies.
2. A person who has been exposed to a contagious disease.
[L. con- tingo, pp. -tactus, to touch, seize, fr. tango, to touch]


/con·tact/ (kon´takt)
1. a mutual touching of two bodies or persons.
2. an individual known to have been sufficiently near an infected person to have been exposed to the transfer of infectious material.

direct contact , immediate contact the contact of a healthy person with a person having a communicable disease, the disease being transmitted as a result.
balancing contact  the contact between the upper and lower occlusal surfaces of the teeth on the side opposite the working contact.
complete contact  contact of the entire adjoining surfaces of two teeth.
indirect contact , mediate contact that achieved through some intervening medium, as prolongation of a communicable disease through the air or by means of fomites.
occlusal contact  contact between the upper and lower teeth when the jaws are closed.
proximal contact , proximate contact touching of the proximal surfaces of two adjoining teeth.
working contact  that between the upper and lower teeth on the side toward which the mandible has been moved in mastication.


A person recently exposed to a contagious disease, usually through close association with an infected individual.
v. (kŏn′tăkt′, kən-tăkt′)
To bring, be, or come in contact.
1. Of, sustaining, or making contact.
2. Caused or transmitted by touching, as a rash.


Etymology: L, contingere, to touch
1 the touching or drawing together of two surfaces, as those of upper and lower teeth. The term is often used attributively, as in contact dermatitis and contact lens.
2 the moving together, either directly or indirectly, of two individuals so as to allow the transmission of an infectious organism from one to the other.
3 a person who has been exposed to an infectious disease.


A secure national (UK) email and directory service developed specifically to meet NHS and British Medical Association requirements for clinical email between NHS organisations.


Severe acute respiratory syndrome Virology A potentially severe and fatal RTI caused by coronavirus. See Coronavirus.
SARS  WHO case definitions
Suspected SARS  
• High fever P> 38ºC
• Respiratory Sx Cough, or SOB, or dyspnea
• Contact Close contact with a person previously diagnosed with SARS–having cared for, lived with, or had direct contact with bodily secretions of a person with SARS
Probable SARS Pt meets criteria of a suspected case and there is radiologic evidence of infiltrates consistent with pneumonia or respiratory distress syndrome l


1. The touching or apposition of two surfaces.
2. A person who has been exposed to a contagious disease.
3. dentistry The area of two teeth in an arch where mesial and distal surfaces touch.
[L. con-tingo, pp. -tactus, to touch, seize, fr. tango, to touch]


a person who has been exposed to a communicable disease


The touching or apposition of two bodies.
[L. con-tingo, pp. -tactus, to touch, seize, fr. tango, to touch]


n the act of touching or meeting.
contact, balancing,
n the contact established between the maxillary and mandibular dentures at the side opposite the working side (anteroposteriorly or laterally) for the purpose of stabilizing the dentures.
contact, deflective occlusal,
n (cuspal interference), a condition of tooth contacts that diverts the mandible from a normal path of closure to centric jaw relation or causes a denture to slide or rotate on its basal seat. See also contact, interceptive occlusal.
contact, faulty,
n imperfections in the contact between adjacent teeth. Often leads to food impaction between the teeth, with subsequent initiation or perpetuation of periodontal lesions.
contact, initial,
n the first meeting of opposing teeth on elevation of the mandible toward the maxillae.
contact, interceptive occlusal,
n an initial contact of teeth that interferes with the normal movement of the mandible. See also contact, deflective occlusal.
contact, premature,
n See deflective occlusal and contact, interceptive.
contact, working,
n a contact of the teeth made on the side of the dental arch toward which the mandible has been moved.


1. a mutual touching of two bodies or animals.
2. an animal known to have been sufficiently near an infected animal to have been exposed to the transfer of infectious material.

contact activation
the initiation of the intrinsic pathway of coagulation that occurs when whole blood contacts glass or similar surfaces; involves the conversion of factor XII into its active form, factor XIIa. This subsequently converts factor XI to XIa and so the coagulation cascade begins.
contact allergy
see contact dermatitis (below).
bone contact repair
repair of a fracture by contact apposition of the two fracture surfaces.
contact dermatitis
is caused by direct contact between the skin and a substance which is irritating or to which the animal is allergic or sensitive. The reaction usually occurs only on that area of the body that has come into contact with the substance. See also allergic contact dermatitis.
direct contact, immediate contact
the contact, by sharing the same accommodation or pasture or group, of a healthy animal with an animal having a communicable disease, the disease being transmitted as a result. See also contact transmission.
contact healing
a form of primary bone healing at a fracture site where there is cortical bone in contact.
contact hypersensitivity
see allergic contact dermatitis.
indirect contact
that achieved through some intervening medium, as propagation of a communicable disease through the air or by means of fomites or another animal, e.g. an infection may be passed to animal A from animal B via animal C; animal C is an indirect contact.
contact irritant dermatitis
skin disease produced by contact with an irritating substance; in contrast with allergic contact dermatitis, an immune reaction is not involved.
mediate contact
indirect contact.

Patient discussion about contact

Q. Contact lenses I’m 17 years old girl, and I have glasses since third grade. I never had any real problems with wearing them,. my best friend always encourage me to try contact lenses, but it seems so strange to put something on directly on your eyes- is it safe? How difficult is it to do?

A. Consult your ophthalmologist (eye doctor) before you decide.

Q. i have been in contact with someone whose in contact with bacterial meningitis. is this dangerous?

A. bacterial meningitis is one of the most lethal infections known. when people get infected by it they get a __ load of antibiotics and so are their families. but it all depends on what stage you had contact, and how close contact. in any way- he is probably under treatment now, no? if so, contact the doctors where he is hospitalized and ask them what is the protocol.

Q. for how long can i use my eye contacts with out harming my eyes? can i go to bed with it?

A. It is very much advised NOT to sleep with contacts, because of higher risks for eye infections that can be very dangerous. You shouldn't wear your eye contacts longer than a full day of work, and remove them when resting.

More discussions about contact
References in periodicals archive ?
We identified and followed close contacts of SARS patients to monitor their progress.
The results of this analysis shed light on the most effective types of police-citizen contacts on which to build a police/ citizen partnership in the inner city.
Our Contact Center solutions allow customers to contact enterprises using the customer's media of choice and to enable intelligent routing of contacts to agents regardless of location.
The Frost & Sullivan research service entitled North American IP Contact Center Markets provides an overview of current and forecast spending on IP-based contact center systems, analysis of spending by size of contact centers, and a breakdown of the forces rapidly driving adoption of IP technology in contact centers.
com article guides consumers through a step-by-step process of choosing where to purchase contact lenses and provides advice on finding the best value by weighing such issues as price, availability, service, and convenience.
We have seen a dramatic rise in sales for Boston Duck Tours and its restaurant and attraction partners using Constant Contact," said Bob Schwartz, assistant director of marketing and sales, Boston Duck Tours (www.
Providing comprehensive training programs to Bay Area athletes of all fitness levels, PacWest uses Constant Contact to inform members and the general public about new program offerings, team socials and upcoming community events.
Jigsaw's vision of an eBay-like marketplace for contact data transforms ordinary business contacts into a valuable commodity that can be bought and sold," said Tom Peterson, general partner at El Dorado Ventures.
The extensive growth of the contact center market in the Asia Pacific region is fueling the already significant demand for a multi-channel, end-to-end customer care solution that is easy and fast to deploy," stated Lionel Lan, I-Contact's General Manager.
blink(TM) Contacts contains the unique ingredient hyaluronate (HA), a naturally occurring lubricant found throughout the body, including in the eyes.
Large global sales companies, professional service firms, and major universities all possess a vast network of valuable contacts and resources from employees within their organization, but it has been difficult to mine that information and share it in a secure, private, and effective way until now.