1. to move something over a surface with friction.
2. the action of such movement.
an auscultatory sound caused by the rubbing together of two serous surfaces, as in pericardial rub
; called also rub
(pericardial friction rub
) a scraping or grating noise heard with the heart beat, usually a to-and-fro sound, associated with an inflamed pericardium. Patients often complain of pleuritic discomfort that radiates in the chest, especially during inhalation. This condition must be distinguished from angina pectoris
pleural rub (pleuritic rub) a friction rub caused by friction between the visceral and costal pleurae.
Friction encountered in moving one body in contact with another.
Friction encountered in moving one body part over another.
Patient discussion about rub
Q. Im only 17 I have horrble lower back pains. Im constitly rubbing,stretching, or cracking my back. the pain is either a throbbing pain or an ache or sting.I feel it worse when I put my chest out my shoulders back. my back feels like its out of place.
A. Lower back pain is so very common... I have had it for years, and just recently what I found to be very helpful is walking. Even a 30-45 minute walk and then some streching is good. I have hardly had any pain since I started exercising and it feels really good. Swimming is also known to help. More discussions about rub