R

rachiotomy (rā-kĭ-ŎT-ŏ-mē):

Incision into the vertebral column.

rachischisis (ră-KĬS-kĭ-sĭs):

Fissure of vertebral column.

radial (RĀD-ē-ăl):

Pertaining to radius.

radicotomy (răd-ĭ-KŎT-ō-mē):

Incision into a nerve root.

radiculitis (ră-dĭk-ū-LĪ-tĭs):

Inflammation of the nerve roots.

radiculopathy (ră-dĭk-ū-LŎP-ă-thē):

Disease of the nerve roots.

radiography (rā-dē-OG-ră-fē):

Process of recording x-rays.

radiologist (rā-dē-ŎL-ō-jĭst):

Physician who specializes in the diagnosis and treatment of disease using medical imaging.

radiology (rā-dē-ŎL-ō-jē):

Study of the use of radiant energy in diagnosing disease.

rebel:

Word part that does not fit within the language rules.

rectal (RĔK-tăl):

Pertaining to the rectum.

rectocele (REK-tŏ-sēl):

Protrusion of the rectum.

reflux (RĒ-flŭks):

Abnormal backward flow.

renogram (RĒ-nŏ-gram):

Radiographic record of the kidney.

respiratory zone (rĕs-PĪR-ă-tō-rē zōn):

The respiratory zone includes structures that are directly involved in gas exchange.

respirologist (res-pĭ-ROL-ŏ-jĭst):

Specialist who studies and treats disease and disorders related to breathing.

respirology (rĕs-pĭr-ŎL-ŏ-jē):

The study of breathing disorders and disease.

response (ri-SPONS):

Nervous system function that causes a target tissue (muscle or gland) to produce an event as a consequence to stimuli.

reticulated (rĕ-TIK-yŭ-lāt-ĕd):

Net like.

retinal (RĔT-ĭ-năl):

Pertaining to the retina.

retinoblastoma (ret-ĭn-ō-blas-TŌ-mă):

Tumor arising from a developing retinal cell.

retinopathy (ret-ĭn-OP-ă-thē):

Disease of the retina.

retinoscopy (ret-ĭn-OS-kŏ-pē):

Process of viewing the retina.

retrograde urogram (RE-trō-grād Ū-rō-grăm):

Radiographic image of the urinary tract.

rhabdomyolysis (rab-dō-mī-OL-ĭ-sĭs):

Dissolution of a striated muscle.

rheumatoid arthritis (ROO-mă-toyd ar-THRĪT-ĭs):

An autoimmune disorder in which the body mounts an immune response against its own joint tissues, causing inflammation and damage to the joints.

rhinitis (rī-NĪ-tĭs):

Inflammation of the nasal cavity which can lead to rhinorrhea.

rhinomycosis (rī-nō-mī-KŌ-sĭs):

Abnormal condition of fungus in the nose.

rhinoplasty (RĪ-nō-plăs-tē):

Surgical repair of the nose.

rhinorrhagia (rī-nō-RĀ-jē-ă):

Rapid flow of blood from the nose.

rhinorrhea (rī-nŏ-RĒ-ă):

Excessive flow or discharge from the nasal cavity (runny nose).

rhizomeningomyelitis (rī-zō-mĕ-nĭn-gō-mī-ĕ-LĪ-tĭs):

Inflammation of the nerve root, meninges and spinal cord.

rhizotomy (rī-ZŎT-ō-mē):

Incision into a nerve root.

rhytidectomy (rit-ĭ-DEK-tŏ-mē):

Excision of the wrinkles.

rhytidoplasty (RĬT-ĭ-dō-plăs-tē):

Surgical repair of wrinkles.

rickets (RIK-ĕts):

A painful condition in children where bones are misshapen due to a lack of calcium, causing bow leggedness.

right lymphatic duct (rīt lim-FAT-ik dŭkt):

Drains lymph fluid from the upper right side of body into the right subclavian vein.

robotic surgery (rō-BŎ- tĭk SŬRJ-ĕ-rē):

Use of small surgical instruments attached to a computer and operated by the surgeon from a console several feet from the operating table.

roots of the great vessels:

The part of each great vessel (aorta, pulmonary trunk, inferior vena cava, superior vena cava) that connects to the base of the heart.

Attribution

Except where otherwise noted, this book is adapted from Medical Terminology by Grimm et al. (2022), Nicolet College, CC BY 4.0 International. / A derivative of Building a Medical Terminology Foundation by Carter & Rutherford (2020), and Anatomy and Physiology by Betts, et al., CC BY 4.0, which can be accessed for free at OpenStax Anatomy and Physiology.