12-letter words containing f, r, i, o
- tick trefoil — any of numerous plants belonging to the genus Desmodium, of the legume family, having trifoliolate leaves and jointed pods with hooked hairs by which they adhere to objects.
- tie-off rail — trim rail.
- tin-fluoride — stannous fluoride.
- titaniferous — containing or yielding titanium.
- 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.
- 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.
- 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.
- traffic cone — conical road markers
- transfection — the insertion into a cell of a bacterial plasmid that contains a foreign virus or genetic material.
- 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
- 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.
- uncomforting — affording comfort or solace.
- unconforming — to act in accordance or harmony; comply (usually followed by to): to conform to rules.
- unconformity — lack of conformity; incongruity; inconsistency.
- unforeboding — a prediction; portent.
- unforeseeing — not foreseeing
- unforgetting — to cease or fail to remember; be unable to recall: to forget someone's name.
- unforgivable — to grant pardon for or remission of (an offense, debt, etc.); absolve.
- unforgivably — in an unforgivable manner
- unformalized — not formalized
- unformidable — causing fear, apprehension, or dread: a formidable opponent.
- 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
- unperforming — not performing
- unprofitable — being without profit; not showing or turning a profit: a series of unprofitable ventures.
- unreinforced — to strengthen with some added piece, support, or material: to reinforce a wall.
- unwished-for — undesired; unwelcome: an unwished-for occurrence.
- unworshipful — not worshipful; not showing reverence or admiration
- 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.
- verification — the act of verifying.
- vicar forane — dean1 (def 2b).