19-letter words containing n, o, a, l, i
- vaginal intercourse — intercourse involving insertion of the penis into the vagina
- valencian community — region comprising three provinces of E Spain: 8,998 sq mi (23,305 sq km); pop. 4,029,000; cap. Valencia
- valley of the kings — a valley on the west bank of the Nile near the site of Thebes: the necropolis of many of the kings and queens of the 18th and 19th dynasties of ancient Egypt, c1350–c1200 b.c.
- velocity modulation — the modulation in velocity of a beam of electrons or ions caused by passing the beam through a high-frequency electric field, as in a cavity resonator
- victor emmanuel iii — 1869–1947, king of Italy 1900–46.
- vigilance committee — an unauthorized committee of citizens organized for the maintenance of order and the summary punishment of crime in the absence of regular or efficient courts.
- vinculum matrimonii — the bond of matrimony.
- vitamin b (complex) — a group of unrelated water-soluble vitamins found in liver, yeast, etc., including: a) vitamin B1 (see thiamine) b) vitamin B2 (see riboflavin) c) vitamin B6 (see pyridoxine) d) nicotinic acid e) pantothenic acid f) biotin g) inositol h) para-aminobenzoic acid i) choline j) folic acid k) vitamin B12 a complex vitamin, C63H90N14O14PCo, containing trivalent cobalt, essential for the normal maturation of erythrocytes, and for normal growth and neurological function, and used esp. in treating pernicious anemia and as an animal feed supplement
- vocational guidance — the process of assisting a student to choose, prepare for, and enter an occupation for which he or she shows aptitude.
- volumetric analysis — determination of the concentration, by volume, of a substance in a solution, as by titration.
- vulvovaginal glands — the small gland on either side of the lower part of the vagina
- wage-push inflation — an inflationary trend caused by wage increases that in turn cause rises in production costs and prices.
- wandering albatross — a large albatross, Diomedea exulans, of southern waters, having the plumage mostly white with dark markings on the upper parts.
- waste disposal unit — an electrically operated fitment in the plughole of a kitchen sink that breaks up food refuse so that it goes down the waste pipe
- welsh mountain pony — a small sturdy but graceful breed of pony used mostly for riding, originally from Wales
- wesleyan methodists — a branch of the Methodist Church in its original form
- wide-angle glaucoma — open-angle glaucoma. See under glaucoma.
- withdrawal syndrome — a spectrum of physical and behavioral symptoms following cessation from the continuous use of an addictive drug, the character and severity of the symptoms depending upon the particular drug and the daily dose.
- writing on the wall — writing done with a pen or pencil in the hand; script.
- xenon tetrafluoride — a colorless, crystalline compound, XeF 4 , prepared by heating a gaseous mixture of fluorine and xenon.
- xenotransplantation — xenograft.
- yablonovy mountains — a mountain range in Siberia. Highest peak: 1680 m (5512 ft)
- yellowtail flounder — a righteyed flounder, Limanda ferruginea, inhabiting waters along the Atlantic coast of North America, having a yellowish tail fin and rusty-red spots on the body: once commercially important, now greatly reduced in number.
- yellowtail kingfish — a large carangid game fish, Seriola grandis, of S Australian waters
- 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)
- zone of illuviation — B horizon.