16-letter words containing p, r, o, v
- relative pronoun — one of the pronouns who, whom, which, what, their compounds with -ever or -soever, or that used as the subordinating word to introduce a subordinate clause, especially such a pronoun referring to an antecedent.
- reversal process — a process for converting the negative on a film or plate to a positive by bleaching and redeveloping.
- rodent operative — a name sometimes used for an official (operative) employed by a local authority to destroy vermin
- savannah sparrow — a North American sparrow, Passerculus sandwichensis, having brown and white plumage with a yellow stripe over each eye.
- scrovegni chapel — Arena Chapel.
- seal of approval — royal stamp of endorsement
- self-deprivation — the act of depriving.
- self-improvement — improvement of one's mind, character, etc., through one's own efforts.
- semiprivate room — a hospital room shared by two people, typically with a curtain dividing the room and providing some privacy
- service provider — company: provides internet
- slave labor camp — labor camp (def 1).
- slip one over on — to hoodwink or trick
- sparking voltage — the minimum voltage required to produce a spark across a given spark gap.
- spiritus vinosus — (in prescriptions) spirits of wine; alcohol.
- the moving party — a person who applies to a court or judge with the aim of obtaining a ruling in their favour
- top drive system — A top drive system is a system which includes a motor that turns the drill string, used instead of the kelly.
- unimproved value — the valuation of land for rating purposes, disregarding the value of buildings or other development
- united provinces — (used with a singular or plural verb) former name of Uttar Pradesh.
- unresponsiveness — responding especially readily and sympathetically to appeals, efforts, influences, etc.: a responsive government.
- vapor channeling — Vapor channeling exists when vapor flow is distributed in an unequal way in a distillation vessel or stage.
- vapor combustion — Vapor combustion is a closed burn system used for treating liquid waste which contains volatile organic compounds.
- ventriculography — radiography of the ventricles of the heart after injection of a contrast medium
- verneuil process — a process for making synthetic rubies, sapphires, spinels, etc., by the fusion at high temperatures of powdered compounds.
- vest-pocket park — pocket park.
- videodisc player — an electronic device for playing videodiscs through a television set.
- vinylidene group — the bivalent group C 2 H 2 , derived from ethylene.
- vinylpyrrolidone — Vinylpyrrolidone is a substance used as a binder in pharmaceuticals.
- virginia cowslip — a perennial woodland plant (Mertensia virginica) of the borage family, native to E North America and having clusters of blue or purple, bell-shaped flowers
- vitruvius pollio — Marcus, flourished 1st century b.c, Roman architect, engineer, and author.
- voice production — the use of the voice in order to create particular effects
- voluntary helper — a person who aids or assists in a specified function of one's own accord and without compulsion or promise of remuneration
- wimp environment — WIMP