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alp a tall mountain.
alpaca a species of South American domesticated mammal, closely related to the llama, with long, soft hair. [4 definitions]
alpenhorn a very long curved wooden horn, used by herdsmen in the Alps to call cattle.
alpenstock a long pointed iron-tipped staff used for mountain climbing.
alpha the name of the first letter of the Greek alphabet. [3 definitions]
alpha and omega the first and last letters of the Greek alphabet. [2 definitions]
alphabet the letters of a written language, esp. if in the standard or customary order. [2 definitions]
alphabetic of, pertaining to, or using an alphabet. [2 definitions]
alphabetical pertaining to or arranged according to the standard order of an alphabet. [2 definitions]
alphabetize to arrange according to the standard order of an alphabet.
Alpha Centauri a double star in the constellation Centaurus, the closest star to the solar system, having a combined magnitude of -0.3.
alphanumeric in computer terminology, consisting of both letters and numbers or other nonalphabetic symbols.
alpha particle a positively charged particle given off as radiation from some fission or decay processes, consisting of two protons and two neutrons.
alpha ray radiation composed of alpha particles.
alpha wave the type of brain wave that is a sign of relaxation, having frequencies from eight to thirteen hertz; alpha rhythm.
Alpheratz a bright star in the constellations Pegasus and Andromeda, having a magnitude of 2.0.
alphorn see alpenhorn.
Alpine (l.c.) of, like, living in, or characteristic of high mountains or mountain regions above the timberline. [4 definitions]
alpinist one who climbs in the Alps or other similar mountains. [2 definitions]
Alps a high mountain range extending from southern France through Switzerland, Italy, Germany, and Austria, and into Yugoslavia and Albania.
already by or before this time or that time; previously. [3 definitions]