13-letter words containing s, p, i, r, l, a
- the spiritual — the realm of spirits
- thermoplastic — soft and pliable when heated, as some plastics, without any change of the inherent properties.
- thigh-slapper — a very funny joke, remark, story, or incident.
- triploblastic — having three primary germ layers, as the embryos of vertebrates.
- tropical fish — any of numerous small, usually brightly colored fishes, indigenous to the tropics, and often kept and bred in home aquariums.
- ultraphysical — extremely physical
- unspiritually — in an unspiritual manner
- unsuperficial — external or outward: a superficial resemblance.
- upper silesia — a highly industrialized region divided between Germany and Poland after World War I.
- visual foxpro — (database) A Microsoft database derived from Fox Software's FoxPRO.
- visual purple — rhodopsin.
- walter piston — Walter, 1894–1976, U.S. composer.
- water spaniel — either of two breeds of spaniels, used for retrieving waterfowl.
- wild spaniard — any of various subalpine perennials of the genus Aciphylla of New Zealand, with sharp leaves
- williams pear — a variety of pear that has large yellow juicy sweet fruit
- with pleasure — gladly, willingly
- xiphiplastral — pertaining to or comprising a xiphiplastron
- xiphiplastron — the fourth lateral plate of a turtle's plastron
- zila parishad — a district council in India