| Alps |
a high mountain range that goes from southern France through Switzerland, Italy, Germany, and Austria and into the countries along the Adriatic Sea down to Albania. |
| Altai Mountains |
a central Asian mountain range that extends from western Mongolia into Russia and China. |
| althorn |
any of various brass wind instruments in the alto or tenor range, esp. the altosaxhorn; alto horn. |
| alto |
the vocal range between tenor and soprano. Alto is the lowest range for the female voice and highest for the male. [5/4 definitions] |
| Andes |
a high mountain range that stretches along the entire west coast of South America. |
| Andes Mountains |
a mountain range that extends the length of the western coast of South America. |
| ape |
a mammal in the group of primates, which includes chimpanzees, gibbons, gorillas, and orangutans. Apes do not have tails. They have very flexible hands and feet. Apes range in size from three to six feet tall, and they can weigh up to 450 pounds. Apes live in the forests in Africa and Asia. [1/2 definitions] |
| Appalachian Mountains |
a mountain range in eastern North America that stretches from the southeastern part of Canada to central Alabama in the United States; Appalachians. |
| Atlas Mountains |
a range of mountains in northwest Africa stretching across the southwestern part of Morocco and northern parts of Algeria and Tunisia. |
| audio frequency |
the range of frequencies of normally audible sound, or the corresponding electronic frequencies; usu. from about fifteen or twenty to 20,000 cycles per second. [2 definitions] |
| audiogram |
a graph that shows the range and degree of hearing ability, or the production of such a graph. |
| audiometer |
an instrument that measures range and degree of hearing ability. |
| bajada |
a smooth, sloping plain along the base of a mountain range, formed by eroded debris deposited by moving water. |
| ballistic missile |
a long-range missile that reaches its target by falling freely at extremely high speed along a precalculated trajectory. |
| bandwidth |
the range of radio frequencies required to transmit a certain type of signal. |
| baritone |
the range of the male voice that is between tenor and bass. [3 definitions] |
| bass1 |
the part of music that requires the lowest range of pitch, or sounds made in the low range. [2/3 definitions] |
| bat2 |
a small mammal that flies. Bats have small bodies and large wings covered with skin. Most bats eat at night, when they use sound to find and catch flying insects. Bats are found in most parts of the world. There are around one thousand kinds of bats. Their wingspans range from less than two inches to more than five feet. Some kinds of bats live in large colonies that roost in caves or in a section of forest. |
| beauty salon |
an establishment that offers a full range of beauty and grooming services, including hair-styling, manicures, and facials. |
| blunderbuss |
an early shoulder-gun having a short barrel, flared at the muzzle to scattershot at close range. [1/2 definitions] |
| broadband |
pertaining to, emitting, or responsive to a wide range of radio frequencies. [1/2 definitions] |