19-letter words containing a, n, t, o, v, l
- 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.
- value added network — (networking) (VAN) A privately owned network that provides a specific service, such as legal research or access to a specialised database, for a fee. A Value Added Network usually offers some service or information that is not readily available on public networks. A Value Added Network's customers typically purchase leased lines that connect them to the network or they use a dial-up number, given by the network owner, to gain access to the network.
- 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.
- yablonovy mountains — a mountain range in Siberia. Highest peak: 1680 m (5512 ft)
- zone of illuviation — B horizon.