11-letter words containing e, p, i, s, t, o
- trisepalous — having three sepals.
- trispermous — having three seeds.
- trypsinogen — a precursor of trypsin that is secreted by the pancreas and is activated to trypsin in the small intestine.
- undeposited — to place for safekeeping or in trust, especially in a bank account: He deposited his paycheck every Friday.
- unipetalous — having only one petal.
- very pistol — a special pistol which fires coloured flares for signalling at night, esp at sea
- westpolitik — a policy of a Communist country of adopting trade and diplomatic relations with non-Communist nations.
- whistlestop — (US, dated) A minor railway station at which a train would stop if requested.
- witherspoon — John, 1723–94, U.S. theologian and statesman, born in Scotland.
- xenoplastic — involving distantly related individuals
- xerophytism — (botany) The adaptation of plants to habitats where water is scarce.
- xerotripsis — dry friction, attrition, or abrasion
- zooparasite — any parasitic animal or protozoan.