Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

Comprehensive
Dictionary Suite
Help
Help
Help
 
Advanced Dictionary    
Display options
Show syllables
Show Lookup History
Double-Click Lookup
  Show Spanish support
  Show Word Combinations
 
Pronunciation
Wordsmyth
  Phonics
  IPA
 
Entry formats
Standard
  Classic
 
Lookup History
astatine

as·ta·tine

astatine

 
pronunciation:
ae st tin [or] ae st tihn
features:
Word Parts
part of speech: noun
definition: a highly radioactive chemical element of the halogen group that has eighty-five protons in each nucleus. (symbol: At)
Word Parts
The word astatine contains the following parts:
a-1, an-1 Greek prefix that means not, without
Show wordsHide wordsMore about this word part:
Words prefixed with a-1, an-1 are nouns and adjectives. Some are loanwords from Greek (amorphous , atrophy ). Others are English formations, which may attach the prefix to English words of Latin origin (asocial , amoral ) or Greek origin (apolitical). The form a-1 is used before bases beginning with a consonant, while an-1 is used before bases beginning with a vowel.
sta, stat, stant, -stance Latin and Greek root that means stand, standing, stablize
synonyms:
sist