Define nadir. nadir synonyms, nadir pronunciation, nadir translation, English dictionary definition of nadir. n. 1. Astronomy A point on the celestial sphere directly below the observer, diametrically opposite the zenith. 2. The lowest point: the nadir of their...
Annular tear â definition and causes. By Michael Perry, M.D. An annular tear is one of the most common degenerative spine conditions that develop with the natural aging process of the spine. In fact, many people over the age of 50 have an annular tear and never know it.
This image displays a small, smooth, round, slightly elevated lesion typical of granuloma annulare. Granuloma annulare is a common skin condition characterized by bumps appearing over the joints and the backs of the hands. Its cause is not known, and most episodes of granuloma annulare clear up after a few years, with or without treatment. Overview.