a European thrush, Turdus torquatus, common in rocky areas. The male has a blackish plumage with a white band around the neck and the female is brown
adjective, Botany. 1. having annual rings marked by a conspicuous band of large pores in wood formed in spring.
noun, Plant Pathology. 1. a disease of potatoes, characterized by wilted foliage and rotting of the ring of vascular bundles in the tubers, caused by a bacterium, Corynebacterium sepedonicum. noun 1. a virulent bacterial disease of potatoes occurring in the vascular ring of the potato tuber Also called potato ring rot
noun, Nautical. 1. ringtail (def 3).
- Ring scotoma
ring scotoma n. An annular area of blindness in the visual field surrounding the point of fixation, associated with glaucoma and pigmentary degeneration of the retina.