feitknechtiteA hexagonal mineral containing hydrogen, manganese, and oxygen.
feitoriaA Portuguese trading post, usually fortified and built in coastal areas along the West and East African coasts, Indian Ocean and Brazil, from 1445 onward.
FelaptonA syllogism having a universal negative as its first premise, a universal affirmative as its second premise, and a particular negative as its conclusion, and structured according to the third figure.
felbamateAn anticonvulsant drug C₁₁H₁₄N₂O₄ that is used to treat severe epilepsy or epilepsy that is unresponsive to other drugs.
FeldenkraisA somatic educational system designed to reduce pain or limitations in movement, to improve physical function, and to promote general well-being by increasing students' awareness of themselves and by expanding students' movement repertoire.
feldgrauThe greenish-grey colour of German military uniforms.
feldmarkA plant community characteristic of sites where plant growth is severely restricted by extremes of cold and exposure to wind, typical of alpine tundra and subantarctic environments.
feldscherIn Russia, one with practical but not formal medical training.
feldsparAny of a large group of rock-forming aluminosilicate minerals containing potassium, sodium, or calcium that, together, make up about 60% of the Earth's outer crust.
feldsparlikeResembling or characteristic of feldspar.
feldspathoidAny of a small group of igneous, plutonic, and volcanic minerals formed in magma that did not contain enough silica to satisfy all the chemical bonds. Feldspathoids are silica-poor variants of the feldspar group.
felidomancyDivination by interpreting the appearance and behaviour of cats.
feliformResembling a cat; applied to member of the Feliformia, a suborder within the order Carnivora consisting of cat-like carnivorans, including cats (large and small), hyenas, mongooses, civets, etc.
FelindreA village in Mawr community, City and County of Swansea, Wales (OS grid ref SN6302).
FelixstoweA coastal town, port, and civil parish with a town council in East Suffolk district, Suffolk, England, previously in Suffolk Coastal district (OS grid ref TM3034).
felkSegment of wheel rim. Variant of felloe or felly
fellfieldA type of open area on windy slopes or ridges at very high altitudes or latitudes where the climate is too cold and dry for anything but sparse, low-growing plants amid rocks and bare soil.
FellgateA residential area of the Metropolitan Borough of South Tyneside, Tyne and Wear, England (OS grid ref NZ3262).
FellinianOf or relating to Federico Fellini (1920–1993), Italian film director and screenwriter whose distinct style blended fantasy and baroque images with earthiness.