1. alpha particle

noun. A positively charged particle that is the nucleus of the helium atom; emitted from natural or radioactive isotopes.
Synonyms
subatomic particle particle
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2. alpha-tocopheral

noun. A potent form of vitamin E obtained from germ oils or by synthesis.
Synonyms
tocopherol E vitamin E

3. alpha-interferon

noun. A form of interferon that is produced endogenously and commercially for its pharmacological effects (including regulation of the immune system and antiviral and antineoplastic effects).
Synonyms
interferon

4. particle

noun. (ˈpɑːrtəkəl, ˈpɑːrtɪkəl) (nontechnical usage) a tiny piece of anything.
Synonyms
molecule chylomicron atom identification particle flyspeck mote stuff corpuscle material grain speck grinding
Antonyms
thickness hardness thinness large big
Etymology
particle (English)
particule (Middle French (ca. 1400-1600))

5. particle

noun. (ˈpɑːrtəkəl, ˈpɑːrtɪkəl) A body having finite mass and internal structure but negligible dimensions.
Synonyms
alpha particle beta particle virino virion thermion fermion fundamental particle ion subatomic particle magnetic monopole body boson elementary particle micelle prion superstring scintilla deuteron
Antonyms
thin unbreakableness breakableness solidity softness
Etymology
particle (English)
particule (Middle French (ca. 1400-1600))

6. particle

noun. (ˈpɑːrtəkəl, ˈpɑːrtɪkəl) A function word that can be used in English to form phrasal verbs.
Synonyms
closed-class word function word
Antonyms
artifact porosity thick
Etymology
particle (English)
particule (Middle French (ca. 1400-1600))

7. alpha

noun. (ˈælfə) The 1st letter of the Greek alphabet.
Synonyms
Greek alphabet alphabetic character letter letter of the alphabet
Antonyms
meaningless insignificance noncrucial indecisive noncritical

8. alpha

adjective. (ˈælfə) Early testing stage of a software or hardware product.
Synonyms
explorative exploratory
Antonyms
nonexploratory unimportance inessential

9. alpha

adjective. (ˈælfə) First in order of importance.
Synonyms
of import important
Antonyms
unimportant insignificant worthless

10. alpha

noun. (ˈælfə) The beginning of a series or sequence.
Synonyms
start
Antonyms
uninfluential modest
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