p-n junction laser
21Rhinoplasty — For the album by Primus, see Rhinoplasty (album). Rhinoplasty Intervention Rhinoplasty: The lower lateral cartilage (greater alar cartilage) exposed for plastic modification via the left nostril …
22electronics — /i lek tron iks, ee lek /, n. (used with a sing. v.) the science dealing with the development and application of devices and systems involving the flow of electrons in a vacuum, in gaseous media, and in semiconductors. [1905 10; see ELECTRONIC,… …
23materials science — the study of the characteristics and uses of various materials, as glass, plastics, and metals. [1960 65] * * * Study of the properties of solid materials and how those properties are determined by the material s composition and structure, both… …
24Semiconductor device — Semiconductor devices are electronic components that exploit the electronic properties of semiconductor materials, principally silicon, germanium, and gallium arsenide. Semiconductor devices have replaced thermionic devices (vacuum tubes) in most …
25Varicose veins — ICD9|671 ICDO = OMIM = 192200 MedlinePlus = 001109 eMedicineSubj = med eMedicineTopic = 2788 MeshID = D014648 Varicose veins are veins that have become enlarged and twisted. Carl Arnold Ruge is credited with having first defined varicose veins as …
26Fiber-optic communication — An optical fiber junction box. The yellow cables are single mode fibers; the orange and blue cables are multi mode fibers: 50/125 µm OM2 and 50/125 µm OM3 fibers respectively. Fiber optic communication is a method of transmitting information from …
27Eye surgery — Intervention Eye surgery in the Middle Ages. ICD 10 PCS 08 ICD 9 CM …
28Wart — For the Nintendo character, see Wart (Nintendo). For toad warts, see parotoid gland. Warts Classification and external resources Warts on the big toe ICD 10 B …
29Sclerotherapy — is a procedure used to treat blood vessels or blood vessel malformations (vascular malformations) and also those of the lymphatic system. A medicine is injected into the vessels, which makes them shrink. It is used for children and young adults… …
30Soldering — For the song, see Soldering (song). For the product, see Solder. Desoldering a contact from a wire. Soldering is a process in which two or more metal items are joined together by melting and flowing a filler metal (solder) into the joint, the… …
