12-letter words containing o, t, f, r
- tin-fluoride — stannous fluoride.
- titaniferous — containing or yielding titanium.
- to a frazzle — absolutely; completely (esp in the phrase burnt to a frazzle)
- to open fire — If you open fire on someone, you start shooting at them.
- to play fair — If you say that someone plays fair, you mean that they behave or act in a reasonable and honest way.
- to your feet — If you get or rise to your feet, you stand up.
- tongue graft — whip graft.
- top grafting — grafting in the top, as of a tree, in order to replace existing branches with those of a more desired variety or form.
- torrefaction — to subject to fire or intense heat; parch, roast, or scorch.
- tour of duty — tour (def 5).
- trace fossil — a fossilized track, trail, burrow, boring, or other structure in sedimentary rock that records the presence or behavior of the organism that made it.
- tractor feed — Computers. a mechanism for aligning and transporting paper for a printer by means of pins that catch in perforations along the edges of the paper.
- traffic cone — conical road markers
- transfection — the insertion into a cell of a bacterial plasmid that contains a foreign virus or genetic material.
- transfer box — A transfer box is a gear system that divides the power between the front and rear axles of a four-wheel drive system.
- transforming — to change in form, appearance, or structure; metamorphose.
- transformism — the doctrine of gradual transformation of one species into another by descent with modification through many generations.
- transformist — an adherent of transformism.
- transmogrify — to change in appearance or form, especially strangely or grotesquely; transform.
- tree of life — a tree in the Garden of Eden that yielded food giving everlasting life. Gen 2:9; 3:22.
- trefoil arch — an arch with cusplike intrados.
- trefoil knot — a knot having the form of a trefoil.
- trifoliolate — having three leaflets, as a compound leaf.
- trifurcation — to divide into three forks or branches.
- trinacriform — three-pronged
- trouble-free — not problematic
- troubleproof — not easily disturbed, disabled, injured, or put out of working order.
- true to form — typical
- true to life — realistic
- tuberiferous — bearing or producing tubers
- tubuliferous — bearing or made up of tubules.
- tubulifloral — (of a plant) tubuliflorous
- turn of mind — If someone is of a particular turn of mind, they have that kind of mind or character.
- type founder — a person engaged in the making of metallic types for printers.
- uncomforting — affording comfort or solace.
- unconformity — lack of conformity; incongruity; inconsistency.
- unconfronted — to face in hostility or defiance; oppose: The feuding factions confronted one another.
- unforecasted — to predict (a future condition or occurrence); calculate in advance: to forecast a heavy snowfall; to forecast lower interest rates.
- unforgetting — to cease or fail to remember; be unable to recall: to forget someone's name.
- unformulated — to express in precise form; state definitely or systematically: He finds it extremely difficult to formulate his new theory.
- unfortuitous — happening or produced by chance; accidental: a fortuitous encounter.
- unifactorial — of or relating to a single gene.
- uniform with — having the same form, appearance, etc. as
- united front — a coalition formed to oppose a force that menaces the interests of all the members: They presented a united front against the enemy.
- unperfection — imperfection
- unperforated — pierced with a hole or holes: Punch out along the perforated line.
- unprofitable — being without profit; not showing or turning a profit: a series of unprofitable ventures.
- urban forest — the trees and plants within a city.
- variant form — a way of writing a word which is used by some people as an alternative to the standard or generally accepted form
- vector field — a region, domain, set, etc., with a vector assigned at each point; vector function.