| alternative energy |
any form of energy other than that which comes from fossil fuel. |
| alternative energy source |
any source of energy other than fossil fuel. |
| alternative fuel |
a fuel other than fossil fuel used to power an internal combustion engine. |
| alternative medicine |
any medical treatment or therapy, such as homeopathy and acupuncture, that is considered nontraditional and is generally not taught in conventional medical schools. |
| alternator |
a generator which produces alternating electrical current. |
| althea |
any of a group of plants having tall spikes of flowers, such as hollyhocks. |
| Althea Gibson |
U.S. professional tennis player, who was the first African-American woman to win all the major world singles tennis titles (b.1927--d.2003). |
| althorn |
any of various brass wind instruments in the alto or tenor range, esp. the altosaxhorn; alto horn. |
| although |
in spite of the fact that; even though; though. |
| altimeter |
an altitude-measuring device such as a specially calibrated barometer. |
| altitude |
the height of a given object or location above a specified base, such as sea level or earth. [4 definitions] |
| alto |
the vocal range between tenor and soprano, being the lowest for the female and highest for the male. [5 definitions] |
| alto clef |
in musical notation, a clef with middle C on the middle line of the staff, or the sign identifying this clef; viola clef. |
| altocumulus |
a cloud having rounded, fluffy edges and a white or gray color, found at medium altitudes. |
| altogether |
thoroughly; totally. [3 definitions] |
| altoist |
in jazz, one who plays alto saxophone. |
| altostratus |
a thick dense cloud that forms a uniform gray sheet that often produces precipitation, found at medium altitudes. |
| altruism |
unselfish concern for the well-being of others. (Cf. egoism.) |
| altruist |
a person who feels unselfish concern for the well-being of others and acts upon this concern in some way. |
| altruistic |
unselfishly devoted to the welfare of others. [2 definitions] |
| alum |
an astringent chemical solid used as a styptic and in tanning and dyeing. [2 definitions] |