18-letter words containing f, i, r, b
- make a beeline for — head directly towards
- manufacturing base — the manufacturing industries of an area or a country considered as a unit and a constituent part of the economy
- milkweed butterfly — monarch butterfly.
- mixed-flow turbine — a water turbine in which water flows radially and axially through the rotating vanes
- north bedfordshire — a city in Bedfordshire, in central England.
- provably difficult — The set or property of problems for which it can be proven that no polynomial-time algorithm exists, only exponential-time algorithms.
- rabbit's-foot fern — hare's-foot fern.
- rabbit-foot clover — a plant, Trifolium arvense, having trifoliate leaves with narrow leaflets and fuzzy, cylindrical, grayish-pink flower heads.
- rabbit-proof fence — a fence through which rabbits are unable to pass
- range of stability — the angle to the perpendicular through which a vessel may be heeled without losing the ability to right itself.
- retirement benefit — a payment made to a retired person
- return-flue boiler — a fire-tube boiler having flues that collect the combustion gases at the end of the boiler opposite the fire door and pass them through the boiler to an uptake above the fire door.
- rufous hummingbird — a reddish-brown hummingbird, Selasphorus rufus, of western North America.
- run in sb's family — If a characteristic runs in someone's family, it often occurs in members of that family, in different generations.
- schofield barracks — a town on central Oahu, in central Hawaii.
- shrubby cinquefoil — a small shrub, Potentilla fruticosa, of the rose family, native to the Northern temperate region, having pinnate leaves and numerous, showy, bright-yellow flowers.
- sub-saharan africa — the region of Africa to the south of the Sahara desert
- subsistence farmer — a farmer who consumes most of the produce he grows, leaving little or nothing to be marketed
- the bird has flown — the person in question has fled or escaped
- tip of the iceberg — a large floating mass of ice, detached from a glacier and carried out to sea.
- to be said for sth — If you say there is a lot to be said for something, you mean you think it has a lot of good qualities or aspects.
- transfinite number — an infinite cardinal or ordinal number.
- uriniferous tubule — a urine-bearing tubule in a nephron of a kidney.
- wingback formation — single wingback formation.