Alpha rays

Definition of Alpha rays

1.(Physics & Chem.) Rays of relatively low penetrating power emitted by radium and other radioactive substances, and shown to consist of positively charged alpha particles (helium nuclei) having enormous velocities but small masses. They are slightly deflected by a strong magnetic or electric field. Compare beta ray and gamma ray. Because the rays penetrate only a small distance in dense matter such as living tissue, small pellets of radioactive substances emitting alpha rays have been used to cause local destruction of tissue, as in cancer therapy.
Word:

Browse

Alopecist
Alopex
Alopiidae
Alopius
Alosa
Alose
Alouatta
Aloud
Alow
Alp
Alpaca
Alpen
Alpenglow
Alpenhorn
Alpenstock
Alpestrine
Alpha
Alpha and Omega
Alpha paper
alpha particle
-Alpha rays-
Alphabet
Alphabetarian
Alphabetic
Alphabetically
Alphabetics
Alphabetism
Alphabetize
alphanumerical
alphanumerics
Alphitomancy
Alphol
Alphonsine
Alphonsine tables
Alpigene
Alpine
Alpinia
Alpinist
Alpist
Alquifou
Already
# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

© 2014 Delaflex, Inc.Dictionary Home