Glossary · Nouns · F
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TermTypeDefinitionClassificationsUpdated
Fenestranouna small opening covered with membrane (especially one in the bone between the middle and inner ear)verified
Fenestrationnounsurgical procedure that creates a new fenestra to the cochlea in order to restore hearing lost because of osteosclerosisverified
Feng ShuinounMWErules in Chinese philosophy that govern spatial arrangement and orientation in relation to patterns of yin and yang and the flow of energy (qi)verified
Fennelnounfennel seeds are ground and used as a spice or as an ingredient of a spice mixtureverified
Fenoprofennouna nonsteroidal anti-inflammatory drug (trade name Nalfon) used in the treatment of arthritis and other painful inflammatory disordersverified
Fenugreeknounannual herb or southern Europe and eastern Asia having off-white flowers and aromatic seeds used medicinally and in curryverified
Fergusonitenouna dark mineral consisting of oxides of yttrium and erbium and tantalum and other mineralsverified
Ferianoun(in Spanish speaking regions) a local festival or fair, usually in honor of some patron saintverified
Fermatanouna musical notation (over a note or chord or rest) that indicates it is to be prolonged by an unspecified amountverified
Fermentationnouna process in which an agent causes an organic substance to break down into simpler substancesverified
Fermentingnouna process in which an agent causes an organic substance to break down into simpler substancesverified
Fermionnounany particle that obeys Fermi-Dirac statistics and is subject to the Pauli exclusion principleverified
Fermiumnouna radioactive transuranic metallic element produced by bombarding plutonium with neutronsverified
Fernnounany of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upwardverified
Fern RhapisnounMWEsmall graceful palm with reedlike stems and leaf bases clothed with loose coarse fibersverified
Ferrimagnetismnouna phenomenon in ferrites where there can be incomplete cancellation of antiferromagnetic arranged spins giving a net magnetic momentverified
Ferritinnouna protein containing 20% iron that is found in the intestines and liver and spleenverified
Ferroconcretenounconcrete with metal and/or mesh added to provide extra support against stressesverified
Ferrocyanidenounsalt of ferrocyanic acid usually obtained by a reaction of a cyanide with iron sulphateverified
Ferromagnetismnounphenomenon exhibited by materials like iron (nickel or cobalt) that become magnetized in a magnetic field and retain their magnetism when the field is removedverified
Ferryboatnouna boat that transports people or vehicles across a body of water and operates on a regular scheduleverified
Fertile PeriodnounMWEthe time in the menstrual cycle when fertilization is most likely to be possible (7 days before to 7 days after ovulation)verified
Fertile PhasenounMWEthe time in the menstrual cycle when fertilization is most likely to be possible (7 days before to 7 days after ovulation)verified
Fertilisernounany substance such as manure or a mixture of nitrates used to make soil more fertileverified
Fertilitynounthe property of producing abundantly and sustaining vigorous and luxuriant growthverified
Fertilization MembranenounMWEthe membrane that forms around a fertilized ovum and prevents penetration by additional spermatozoonverified
Fertilized EggnounMWEan animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval lifeverified
Fertilized OvumnounMWE(genetics) the diploid cell resulting from the union of a haploid spermatozoon and ovum (including the organism that develops from that cell)verified
Fertilizernounany substance such as manure or a mixture of nitrates used to make soil more fertileverified
Fescuenoungrass with wide flat leaves cultivated in Europe and America for permanent pasture and hay and for lawnsverified
Fescue GrassnounMWEgrass with wide flat leaves cultivated in Europe and America for permanent pasture and hay and for lawnsverified
Festeringnoun(medicine) the formation of morbific matter in an abscess or a vesicle and the discharge of pusverified
Festinationnouninvoluntary shortening of stride and quickening of gait that occurs in some diseases (e.g., Parkinson's disease)verified
Fetal Alcohol SyndromenounMWEa congenital medical condition in which body deformation occurs or facial development or mental ability is impaired because the mother drinks alcohol during pregnancyverified
Fetal CirculationnounMWEthe system of blood vessels and structures through which blood moves in a fetusverified
Fetal MembranenounMWEany membrane that functions for the protection or nourishment or respiration or excretion of a developing fetusverified
Fetal MonitornounMWEan electronic monitor that monitors fetal heartbeat and the mother's uterine contractions during childbirthverified
Fetal MovementnounMWEmotion of a fetus within the uterus (usually detected by the 16th week of pregnancy)verified
Fetichismnounsexual arousal or gratification resulting from handling a fetish (or a specific part of the body other than the sexual organs)verified
Fetid BugbanenounMWEbugbane of Siberia and eastern Asia having ill-smelling green-white flowersverified
Fetid HorehoundnounMWEill-smelling European herb with rugose leaves and whorls of dark purple flowersverified