18-letter words containing g, r, b, i
- ragtag and bobtail — the riffraff; rabble: The ragtag and bobtail of every nation poured into the frontier in search of gold.
- range of stability — the angle to the perpendicular through which a vessel may be heeled without losing the ability to right itself.
- reggio di calabria — a seaport in S Italy, on the Strait of Messina: almost totally destroyed by an earthquake 1908.
- relational algebra — (database, theory) A family of algebra with a well-founded semantics used for modelling the data stored in relational databases, and defining queries on it. The main operations of the relational algebra are the set operations (such as union, intersection, and cartesian product), selection (keeping only some lines of a table) and the projection (keeping only some columns). The relational data model describes how the data is structured.
- richard p. gabriel — Richard Gabriel
- risk based testing — (testing) Testing based on identification of potential risks (or "candidate risks"), which should be analysed by the project stakeholder or which might appear during the project's development.
- rufous hummingbird — a reddish-brown hummingbird, Selasphorus rufus, of western North America.
- saturation bombing — intense area bombing intended to destroy everything in the target area.
- selective breeding — the raising of animals with particular genetic traits through careful choice of parents
- sir george gilbert — Barbara Ann, 1928–2012, Canadian figure skater.
- social bookmarking — the practice of saving bookmarked Web pages to a public website as a way to share the links with other Internet users: Social bookmarking is a tool that allows you to add tags and comments to your bookmarks.
- squirting cucumber — a Mediterranean plant, Ecballium elaterium, of the gourd family, whose ripened fruit forcibly ejects the seeds and juice.
- submaxillary gland — submandibular gland.
- supraorbital ridge — browridge.
- the general public — the people in a society; people in general
- tip of the iceberg — a large floating mass of ice, detached from a glacier and carried out to sea.
- transporter bridge — a bridge for carrying passengers and vehicles by means of a platform suspended from a trolley.
- travelling library — a mobile library in which a vehicle such as a van delivers books to be borrowed
- treaty obligations — obligations or duties that must be carried out by a party as according to a treaty they have entered into
- universal debugger — (tool, parallel) (udb) KSR's interactive source level debugger for serial and parallel programs written in KSR, Fortran, KSR C and KSR1 assembly language. Udb is a source level debugger for testing and debugging serial and parallel programs; it is compatible with GDB and dbx. The user can direct udb either by typing commands or graphically through an X-based window interface; the latter provides simultaneous display of source code, I/O and instructions. For parallel programs, operations can be carried out per-thread.
- urban homesteading — homesteading (def 2).
- westinghouse brake — a railroad air brake operated by compressed air.
- wingback formation — single wingback formation.
- wood-burning stove — cooker: fueled by wood
- working men's club — A working men's club is a place where working people, especially men, can go to relax, drink alcoholic drinks, and sometimes watch live entertainment.