fermi |
a unit of length equal to 10-15 meter. |
fermium |
a synthetic radioactive chemical element that has one hundred protons in each nucleus. (symbol: Fm) |
fern |
any of several flowerless, seedless plants having green, feathery leaves. |
fernery |
a place or terrarium in which ferns are grown. [2 definitions] |
ferocious |
cruelly savage; fierce. [2 definitions] |
ferocity |
the quality or state of being ferocious; ferociousness. |
-ferous |
bearing; yielding; containing. |
ferrate |
any of several salts of iron. [2 definitions] |
ferret |
a domesticated, usu. albino variety of the European polecat, used in hunting rabbits, rats, and the like. [5 definitions] |
ferric |
of, relating to, or containing iron, esp. with a valence of three. |
ferric oxide |
a red-brown solid compound in the natural form of iron ore or rust, processed for use as a pigment and in metallurgy, magnetic tapes and polishing compounds. |
Ferris wheel |
(sometimes l.c.) a ride, as at a carnival or amusement park, consisting of a very large upright power-driven wheel with partially enclosed seats that are suspended between two parallel rims. |
ferrite |
any compound formed by the combining of ferric oxide with the oxide of a baser metal. [3 definitions] |
ferro- |
iron. |
ferroconcrete |
see "reinforced concrete." |
ferroelectric |
of or relating to a nonconducting material that will polarize when an electric field is applied. [2 definitions] |
ferromagnetic |
of or pertaining to several substances, such as iron and nickel, that are easily magnetized. |
ferromanganese |
an alloy of manganese and iron, used in steelmaking. |
ferrous |
of, relating to, or containing iron, esp. with a valence of two. |
ferrous oxide |
a powdery black compound of iron used in making steel, a type of glass, and enamels. |
ferruginous |
of, containing, or like iron. [2 definitions] |