13-letter words containing f, r, i, s, t
- infrared star — a star radiating strongly in the infrared portion of the electromagnetic spectrum.
- infringements — Plural form of infringement.
- infructuously — in an infructuous or unfruitful manner; fruitlessly
- inns of court — (in England) the four private unincorporated societies in London that function as a law school and have the exclusive privilege of calling candidates to the English bar
- interest-free — An interest-free loan has no interest charged on it.
- interferences — Plural form of interference.
- interspecific — existing or occurring between species.
- interstratify — to lie in interposed or alternate strata.
- intraspecific — existing or occurring within a species.
- justificatory — serving to justify; providing justification.
- killing frost — the occurrence of temperatures cold enough to kill all but the hardiest vegetation, especially the last such occurrence in spring and the first in fall, events that limit the agricultural growing season.
- life interest — interest on property that is payable during the owner's lifetime but cannot be passed on to another or others after his or her death.
- lobster shift — Also called lobster trick. dogwatch (def 2).
- magnetiferous — (dated) Producing or conducting magnetism.
- malformations — Plural form of malformation.
- manufactories — Plural form of manufactory.
- marsh trefoil — buck bean.
- materfamilias — the mother of a family.
- mesne profits — rents or profits accruing during the rightful owner's exclusion from his land
- metalliferous — containing or yielding metal.
- microfelsitic — (of a rock) showing evidence of crystallization having begun, but not yet having formed any crystals
- microsoft dos — Microsoft Disk Operating System
- microsoft iis — Internet Information Server
- mistrustfully — In a mistrustful manner.
- myofibroblast — (cytology) A cell that is intermediate between a fibroblast and smooth muscle.
- narrow-fisted — tight-fisted.
- nectariferous — producing nectar.
- nonconformist — a person who refuses to conform, as to established customs, attitudes, or ideas.
- nonesterified — relating to a fatty acid that is not esterified with glycerol to make glyceride
- off the rails — into or in a state of dysfunction or disorder
- one's forties — the ages between 40 and 49
- osteofibrosis — loss of calcium from the bones, causing them to become fragile
- paper profits — an unrealized profit due to the appreciation of something owned but not yet sold.
- passion fruit — any edible fruit of a passionflower, as the maypop.
- paterfamilias — the male head of a household or family, usually the father.
- perfectionism — any of various doctrines holding that religious, moral, social, or political perfection is attainable.
- perfectionist — a person who adheres to or believes in perfectionism.
- petroliferous — containing or yielding petroleum
- photofinisher — a person whose profession is photofinishing
- pitch surface — (in a gear or rack) an imaginary surface forming a plane (pitch plane) a cylinder (pitch cylinder) or a cone or frustrum (pitch cone) that moves tangentially to a similar surface in a meshing gear so that both surfaces travel at the same speed.
- platiniferous — platinum-bearing
- pommes frites — French fries
- pontificators — the office or term of office of a pontiff.
- port of spain — (used with a plural verb) two islands in the N Atlantic Ocean, off the NE coast of Venezuela.
- port-of-spain — (used with a plural verb) two islands in the N Atlantic Ocean, off the NE coast of Venezuela.
- post-freudian — of or relating to Sigmund Freud or his doctrines, especially with respect to the causes and treatment of neurotic and psychopathic states, the interpretation of dreams, etc.
- prefix syntax — prefix notation
- presanctified — (of the Eucharistic elements) consecrated at a previous Mass.
- prescientific — of or relating to science or the sciences: scientific studies.
- profectitious — (of money or property) proceeding from a parent or derived from an ancestor