Atlas Mountains |
a range of mountains in northwest Africa stretching across the southwestern part of Morocco and northern parts of Algeria and Tunisia. |
at last |
after a long time or wait; finally. |
at least |
at the lowest amount; not less than. [2 definitions] |
at length |
for a long time; in great detail. [2 definitions] |
at liberty |
free from bondage. [2 definitions] |
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. |
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] |
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] |
atomic |
of or relating to atoms or to the use of atoms in creating energy. [3 definitions] |
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 energy |
the energy that is released by an atom in nuclear reactions such as fission or fusion. [2 definitions] |
at once |
at the same time. [2 definitions] |
atone |
to make reparation for a sin, crime, error, or the like (usu. fol. by "for"). [2 definitions] |
at one's heels |
in close pursuit. |
atop |
at or on the highest point. [2 definitions] |
at present |
right now. |
at rest |
inactive, not moving, or in repose. [2 definitions] |