19-letter words containing e, c, h, i
- vesicular exanthema — an infectious viral disease of swine, characterized by blisters on the snout, mucous membranes, and feet.
- vinylidene chloride — a colorless, volatile, flammable liquid, C 2 H 2 Cl, that is copolymerized chiefly with vinyl chloride to form saran.
- von neumann machine — the stored-program computer developed by John von Neumann and his associates
- watch night service — a service held on the night of December 24, or of December 31
- what makes one tick — a slight, sharp, recurring click, tap, or beat, as of a clock.
- whispering campaign — the organized spreading of insinuations or rumors to destroy the reputation of a person, organization, etc.
- white-collar worker — office employee, clerical worker
- white-winged scoter — a blackish North American duck, Melanitta deglandi, having a white patch on each wing.
- within rocket range — able to be reached by rockets
- write-protect notch — a cut-out on a floppy disk that determines whether a disk is writable
- xt bus architecture — (hardware, architecture) (After the IBM PC XT) An eight-bit ISA bus architecture used by Intel 8086 and Intel 8088 systems in the IBM PC and IBM PC XT in the 1980s. It predates the 16-bit ISA architecture used on the Intel 80286 based machines. The XT bus has four DMA channels, of which three are brought out to the expansion slots. Of these three, two are normally allocated to machine functions: DMA channel Expansion Standard function 0 No {dynamic RAM} refresh 1 Yes add-on cards 2 Yes {floppy disk} controller 3 Yes {hard disc} controller (1997-09-15)
- zenithal projection — a type of map projection in which part of the earth's surface is projected onto a plane tangential to it, either at one of the poles (polar zenithal), at the equator (equatorial zenithal), or between (oblique zenithal)