1. beta particle

noun. A high-speed electron or positron emitted in the decay of a radioactive isotope.
Synonyms
subatomic particle particle

2. beta-interferon

noun. A form of interferon that is produced by fibroblasts and have antiviral effects; used in the treatment of multiple sclerosis.
Synonyms
interferon

3. beta-adrenergic blocker

noun. Any of various drugs used in treating hypertension or arrhythmia; decreases force and rate of heart contractions by blocking beta-adrenergic receptors of the autonomic nervous system.
Synonyms
pindolol Lopressor Inderal blocker metoprolol beta blocker acebutolol Corgard beta-blocking agent Blocadren Visken Sectral blocking agent carvedilol Tenormin esmolol beta-adrenergic blocking agent Brevibloc nadolol atenolol propanolol timolol

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. beta

noun. (ˈbeɪtə) The 2nd letter of the Greek alphabet.
Synonyms
Greek alphabet alphabetic character letter letter of the alphabet
Antonyms
meaningless insignificance noncrucial indecisive noncritical
Etymology
beta (English)
βῆτα (Ancient Greek (to 1453))

8. beta

adjective. (ˈbeɪtə) Second in order of importance.
Synonyms
of import important
Antonyms
unimportant insignificant worthless
Etymology
beta (English)
βῆτα (Ancient Greek (to 1453))

9. Beta

noun. Beets.
Synonyms
goosefoot family caryophylloid dicot genus common beet Beta vulgaris Chenopodiaceae genus Beta beet family Chenopodiaceae

10. beta

adjective. (ˈbeɪtə) Preliminary or testing stage of a software or hardware product.
Synonyms
explorative exploratory
Antonyms
nonexploratory unimportance inessential
Etymology
beta (English)
βῆτα (Ancient Greek (to 1453))
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