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Abbreviation for:
range of interest
reactive oxygen intermediate
return on investment
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


(re'jon) [L. regio, boundary]
A portion of the body with natural or arbitrary boundaries. Synonym: regioregional (-al), adjective
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abdominal regions

The abdomen and its external surface, divided into nine regions by four imaginary planes: two horizontal, one at the level of the ninth costal cartilage (or the lowest point of the costal arch) and the other at the level of the highest point of the iliac crest; two vertical, through the centers of the inguinal ligaments (or through the nipples or through the centers of the clavicles) or curved and coinciding with the lateral borders of the two abdominal rectus muscles.
See: illustration

chest region

Any of the three areas of the chest: anterior, posterior, and lateral. The anterior divisions (right and left) are the clavicular, infraclavicular, and supraclavicular, the mammary and inframammary, and the upper and lower sternal. The posterior divisions (right and left) are the scapular, infrascapular, interscapular, and suprascapular. The lateral divisions are the axillary and infra-axillary.

hypochondriac region


hypogastric region


iliac region

The inguinal region on either side of the hypogastrium.

inguinal region


lumbar region

That area of the abdominal surface lateral to the umbilical region, above the iliac region, and below the hypochondriac region.

region of interest

Abbreviation: ROI
In radiology, the object of a study or a treatment designed to affect a limited part of the body.

parasternal region

The area between the sternal border and parasternal line.

sternomastoid region

The wide area on the lateral region of the neck covered by sternocleidomastoid muscle.

region of interest

Abbreviation: ROI
In radiology, the object of a study or a treatment designed to affect a limited part of the body.
See also: region
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
To date, we continue to leverage the OpX TCO Playbook, Workforce Engagement Framework and Factory Acceptance Test Protocols to ensure efficient and successful capital project development and deployment.
TCO is not just a clever marketing ploy to make prices seem more reasonable.
DeHart et al., "Stability of TCO window layers for thin-film CIGS solar cells upon damp heat exposures--part II," in 2nd Reliability of Photovoltaic Cells, Modules, Components, and Systems, vol.
This paper however, summarizes the results specifically related to the lower TCO construct.
Focusing on environmental, social and economic responsibility, TCO Certified is said to be the first programme of its kind to enhance its environmental certification with requirements for corporate social responsibility (CSR) in production facilities for IT products.
With an impressive panel of experts and key local business heads, the half-day conference resulted in an insightful understanding on the innovations, principles and case studies exhibiting reduced TCO technology solutions in the hospitality sector.
While these alternative fuel vehicles carry an up-front cost premium (and can require additional infrastructure investments), the TCO over the lifetime of the vehicle can be lower than conventional internal combustion engine (ICE) vehicles.
Prolonging the useful life of the ICT not only helps reduce TCO, it is also reduces cost of test.
Third party sustainability label for IT products TCO Certified announced on Thursday TCO Certified Tablets, the programme's first sustainability certification for tablet PCs.
TCO's a breeze compared with TYO awake before his time.
The TCO Certified usability and eco-label for ICT products has awarded the prestigious TCO Certified Edge designation to the new Samsung Notebook Series 9 for outstanding achievement in outdoor readability.