A model of semiconductor behaviour in which donors contribute a positive charge equal in magnitude to the charge of an electron, and acceptors contribute space for such a charge within the crystal lattice. Honored by history well before electrons were discovered and described, much of electronics, especially at the engineering level, continues to consider current as flowing from positive to negative.
- Hole of retina
hole of retina n. A break in the continuity of the neural and pigmented layers of the retina that allows them to separate.
[hohl-proof] /ˈhoʊlˌpruf/ adjective 1. (of fabric or an article of clothing) designed or made so as to prevent . 2. constructed so as to prevent evasion or subterfuge: a holeproof document.
noun 1. .
[hohl] /hoʊl/ noun 1. an opening through something; gap; aperture: a hole in the roof; a hole in my sock. 2. a hollow place in a solid body or mass; a cavity: a hole in the ground. 3. the excavated habitation of an animal; burrow. 4. a small, dingy, or shabby place: I couldn’t live […]