13-letter words containing i, n, p, l, a
- vanilla plant — a composite plant, Trilisa odoratissima (or Carphephorus odoratissimus), of the southeastern U.S., having purplish flower heads and vanilla-scented leaves used to flavor tobacco.
- vanity plates — a vehicle license plate bearing a combination of letters or numbers requested by the licensee, as a name or occupation.
- vinyl plastic — any of various plastics made from polymerized vinyl compounds or copolymers of vinyl and other resins, used in various molded or extruded products, coatings, adhesives, sizes, etc.
- virginia plan — a plan, unsuccessfully proposed at the Constitutional Convention, providing for a legislature of two houses with proportional representation in each house and executive and judicial branches to be chosen by the legislature.
- wall painting — mural painting executed by any of various techniques, as encaustic, tempera, fresco, or oil paint on canvas, often as an enhancement of the architecture of which the recipient wall is a part.
- walter piston — Walter, 1894–1976, U.S. composer.
- water spaniel — either of two breeds of spaniels, used for retrieving waterfowl.
- weeping myall — any of several Australian acacias, especially Acacia pendula (weeping myall) having gray foliage and drooping branches.
- well-speaking — the act, utterance, or discourse of a person who speaks.
- white pelican — an aquatic bird of the tropical and warm water family Pelecanidae, P. onocrotalus: order Pelecaniformes. They have a long straight flattened bill, with a distensible pouch for engulfing fish
- wild spaniard — any of various subalpine perennials of the genus Aciphylla of New Zealand, with sharp leaves
- xiphiplastron — the fourth lateral plate of a turtle's plastron
- zinc sulphate — a colourless soluble crystalline substance usually existing as the heptahydrate or monohydrate: used as a mordant, in preserving wood and skins, and in the electrodeposition of zinc. Formula: ZnSO4
- zooplanktonic — Of or pertaining to zooplankton.
- zuppa inglese — tiered layers of sponge cake sprinkled with rum or liqueur, then spread with custard or other cream filling.