Skip to Main Content

We have a new app!

Take the Access library with you wherever you go—easy access to books, videos, images, podcasts, personalized features, and more.

Download the Access App here: iOS and Android. Learn more here!


(kownt″ĕ-rĕ-zis′tăns) In Freudian psychology, the resistance by a psychotherapist that corresponds to the patient's resistance to closeness and change of life patterns. Examples include coming late to sessions, avoiding certain subjects, and fascination with the patient. There are three types of counterresistance: countertransference, characterological resistance, and cultural resistance.


(kown′tĕr-shŏk″) The application of electric current to the heart by internal paddles, external paddles, or electrodes. SEE: cardioversion; defibrillation.

counterstain, counter stain

(kown′tĕr-stān″) A pigment used to highlight or add contrast to parts of a tissue specimen that have already been colored with a primary stain.


(kown″tĕr-trăk′ shŭn) The application of traction so the force opposes the traction already established; used in reducing fractures and assisting with surgical dissection.


(kownt′ĕr-transfer′ĕns) In psychotherapeutic theory, the development by a health care professional of an emotional relationship, i.e., transference, with his or her patient due to a relationship the professional has had in the past with another person. In this situation, the therapist may lose objectivity.


(kū) SEE: contrecoup.


(kŭp′lănt) A medium, typically a viscous, nontoxic liquid or gel, that transmits ultrasonic energy from its source to the object to be stimulated. In respiratory care, a couplant in a nebulizer transmits the ultrasonic vibrations into a chamber in which a medication is held. The ultrasonic energy aerosolizes the medication for inhalation by the patient.


(kŭp′ĕl) 1. To join. 2. To have sexual intercourse. 3. Dyad, senses (1) and (4).


Any device that joins two objects, e.g., a video endoscope to its light source.

couple-year of protection

ABBR: CYP. In family planning, the number of days per year that any method of birth control will prevent conception. Abstinence from sexual intercourse, or sterilization of both members of a couple, provides absolute (365 days/year) protection. Other methods of family planning or fertility inhibition are relatively less effective. Couples that attempt penile withdrawal before male climax (coitus interruptus) have the lowest levels of CYP of any method. Condoms provide a moderate increase in contraceptive effectiveness but are less effective than intrauterine devices, contraceptive pills, or contraceptive implants.


(kŭp′lĭng) 1. In cardiology, the regular occurrence of a premature beat just after a normal heart beat. 2. A device that holds two instruments together. 3. A surgically constructed link between two organs or blood vessels.

Courvoisier, Ludwig Georg

(koor-vwa′ zyā′) Swiss surgeon, 1843–1918.

C. law Disease processes associated with prior inflammation ...

Pop-up div Successfully Displayed

This div only appears when the trigger link is hovered over. Otherwise it is hidden from view.