18-letter words containing p, i, n, g, r, a
- surgical appliance — a specialized device used by somebody to relieve a particular medical condition
- sustaining program — a radio or television program without a commercial sponsor.
- sweptwing aircraft — an aircraft which has wings that are swept (usually) backwards
- sympathetic string — a thin wire string, as in various obsolete musical instruments, designed to vibrate sympathetically with the bowed or plucked strings to reinforce the sound.
- system-programming — a program, as an operating system, compiler, or utility program, that controls some aspect of the operation of a computer (opposed to application program).
- the general public — the people in a society; people in general
- to scrape a living — If you say that someone scrapes a living or scratches a living, you mean that they manage to earn enough to live on, but it is very difficult. In American English, you say they scrape out a living or scratch out a living.
- transporter bridge — a bridge for carrying passengers and vehicles by means of a platform suspended from a trolley.
- universal coupling — a coupling between rotating shafts set at an angle to one another, allowing for rotation in three planes.
- whispering gallery — a space or gallery beneath a dome or broad arch in which low sounds produced at any of certain points are clearly audible at certain other distant points.