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as·ta·tine
 astatine
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- 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)
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The word astatine
contains the following parts:
a-1, an-1
Greek
prefix
that means not, without
  More 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.
Example words:
abiogenesis, abiotic, abranchiate, abysmal, abyss, achene, achromatic, achromic, adiabatic, agnostic, alexia, amenorrhea, amethyst, ametropia, amnesia, amnesty, amoral, amorphous, anaemia, anaerobe, anaerobic, analgesia, analgesic, anarchy, anecdote, anemia, aneroid, anesthesia, anesthesiology, anodyne, anomalous, anomaly, anomie, anonym, anonymous, anorexia, anoxia, anuria, apathy, aperiodic, apetalous, aphasia, aplastic anemia, apraxia, apterous, apteryx, arrhythmia, aseptic, asexual, asocial, asphyxia, astatine, asthenia, astigmatism, asymmetry, asymptote, ataractic, ataxia, atheist, atom, atonal, atrophy, avitaminosis, azygous, neurasthenia
sta, stas, stat, stant, -stance
Latin and Greek
root
that means stand, standing, stabilize
Example words:
aerostat, aerostatics, apostasy, apostate, astatine, circumstance, constant, ecstasy, ecstatic, establish, instability, obstacle, stabile, stability, stabilize, stable, stagnant, static, station, stationary, statue, status, substance
- synonyms:
- sist
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