Phrases starting with the letter: 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
Previous word: mesothorax
Next word: mesotron
Definition of: mesothorium
(mes′ə·thôr′ē·əm, -thō′rē-, mē′sə-) noun Physics
Either of two isotopes resulting from the radioactive disintegration of thorium, intermediate between thorium and radiothorium.
Comment about this word, ask questions, or add new information about this topic: