at liberty |
free from bondage. [2 definitions] |
at loggerheads |
engaged in an argument or dispute. |
at loose ends |
in an unsettled, uncertain, or confused state. [2 definitions] |
ATM |
abbreviation of "automated teller machine," a computerized machine serving the function of a bank teller. |
atman |
in Hinduism, the individual soul striving for enlightenment; breath of life. [2 definitions] |
ATM card |
a plastic card that enables the holder to access an automated teller machine to obtain cash drawn from or charged against a bank account. |
atmosphere |
the mass of gases surrounding the earth or any other celestial body. [3 definitions] |
atmospheric |
of, pertaining to, or consisting of the mass of gases surrounding the earth. [2 definitions] |
atmospheric river |
a very long and narrow wind corridor that transports a vast amount of water vapor through the sky, which can result in drenching rainstorms for particular areas. |
atmospherics |
(used with a sing. verb) static in radio reception caused by atmospheric electrical activity. [2 definitions] |
at odds |
not in agreement; out of harmony. |
atoll |
a ring-shaped island or reef that surrounds a lagoon. |
atom |
an invisible component of any element, consisting of protons, neutrons, and electrons, once considered the smallest possible unit of matter. [2 definitions] |
atom bomb |
see "atomic bomb." |
atomic |
of or relating to atoms or to the use of atoms in creating energy. [3 definitions] |
atomic age |
(often cap.) the period in history characterized by the development and use of atomic energy in the generation of electrical power and for immensely destructive weapons. |
atomic bomb |
an extremely destructive weapon, the explosive power of which derives from the immense amount of energy suddenly released when the nuclei of uranium 235 or plutonium atoms are split; atom bomb. |
atomic clock |
an extremely accurate timekeeping device regulated by the reliably constant frequency at which atoms of certain highly reactive substances absorb or emit electromagnetic radiation. |
atomic cocktail |
(informal) a dose of a liquid, taken orally, that contains a radioactive substance used in the diagnosis or treatment of cancer. |
atomic energy |
the energy that is released by an atom in nuclear reactions such as fission or fusion. [2 definitions] |
atomicity |
the number of atoms in a molecule. [2 definitions] |