Also found in: Dictionary, Thesaurus, Legal, Financial, Acronyms, Encyclopedia, Wikipedia.


American College of Cardiology.


Abbreviation for anodal closure contraction.


American College of Cardiology.

acc, Acc

abbreviation for accommodation.


abbreviation for American College of Cardiology.


Abbreviation for:
acetyl coenzyme A carboxylase
acinic-cell carcinoma
adenoid cystic carcinoma
Adjusted Credit Ceiling (Medspeak-UK)
agenesis of corpus callosum
alveolar cell carcinoma
ambulatory care center
American College of Cardiology
anodal closure contraction
anterior cingulate cortex
aplasia cutis congenita
Association of County Councils (Medspeak-UK)


(a-kom?a-da'shon) [L. accommodare, to suit],

a; acc

1. Adjustment or adaptation.
2. In ophthalmology, a phenomenon noted in receptors in which continued stimulation fails to elicit a sensation or response.
Enlarge picture
3. The adjustment of the eye for various distances whereby it is able to focus the image of an object on the retina by changing the curvature of the lens. In accommodation for near vision, the ciliary muscle contracts, causing increased rounding of the lens, the pupil contracts, and the optic axes converge. These three actions constitute the accommodation reflex. The ability of the eye to accommodate decreases with age. Synonym: ocular accommodation; visual accommodation See: illustration
4. In the learning theory of Jean Piaget, the process through which a person's schema of understanding incorporates new experiences that do not fit existing ways of understanding the world. See: adaptation

absolute accommodation

Accommodation of one eye independently of the other.

binocular accommodation

Coordinated accommodation of both eyes jointly.

excessive accommodation

Greater-than-needed accommodation of the eye.

ill-sustained accommodation

Ill-sustained insufficiency.

mechanism accommodation

A method by which curvature of the eye lens is changed in order to focus close objects on the retina.

negative accommodation

Relaxation of the ciliary muscle to adjust for distant vision.

ocular accommodation

Accommodation (3).

positive accommodation

Contraction of the ciliary muscle to adjust for near vision.

reasonable accommodation

An employer's responsibility to provide necessary workplace changes in reassignment, equipment modification, devices, training materials, interpreters, and other adjustments for disabled employees.

relative accommodation

The extent to which accommodation is possible for any specific state of convergence of the eyes.

subnormal accommodation

Insufficient accommodation.

visual accommodation

Accommodation (3).
References in periodicals archive ?
There was a measure of resentment that the primates had acted precipitately and punitively to the ACC by saying that Canada and ECUSA (Episcopal Church in the United States of America) could not be members of the ACC," said Bishop Paterson in an interview.
In the past few years, ACC has completed renovations and construction on numerous major hospitals and medical centers.
She was one of three Canadian delegates who attended the ACC as an observer.
The one occasion when the two bodies did meet together, in 1992, was judged not to be a success by the ACC members, who felt the agenda had been the primates' rather than the council's.
Two years ago, ACC completed renovations on 50 townhouses for students at Columbia University, installing new kitchens and bathrooms in each property.
The decision was made following a request by Anglican primates last February that the Canadian and American churches "voluntarily withdraw" from the ACC as a step towards restoring unity within an Anglican Communion fractured by the issue of same-sex blessings in New Westminster and the ordination of a gay bishop in New Hampshire.
Moreover, the measures ACC Construction took during lean times have helped immeasurably and are now enabling us to secure a stronger position in the market.
Mary of the Lake, ECUSA's Executive Council said in a statement that it suspended its membership on the ACC to "express our openness to the concerns and beliefs of others.