Synonyms
Antonyms

1. bric-a-brac

noun. miscellaneous curios.

Synonyms

  • whatnot
  • rarity
  • knickknack
  • knickknackery
  • oddity
  • oddment
  • nicknack
  • curio
  • curiosity

Antonyms

  • abundance
  • familiarity

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2. A-bomb

noun. a nuclear weapon in which enormous energy is released by nuclear fission (splitting the nuclei of a heavy element like uranium 235 or plutonium 239).

Synonyms

  • fission bomb
  • dirty bomb
  • atomic weapon
  • neutron bomb
  • atomic bomb
  • plutonium bomb
  • atom bomb
  • clean bomb
  • plutonium pit
  • nuclear weapon
  • plutonium trigger

Antonyms

  • smart bomb
  • defend
  • pass

3. A

noun. a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation.

Synonyms

  • micromicron
  • micromillimeter
  • millimicron
  • picometer
  • nanometer
  • metric linear unit
  • micromillimetre
  • picometre
  • nanometre
  • angstrom unit
  • angstrom

4. A

noun. the 1st letter of the Roman alphabet.

Synonyms

  • a
  • letter of the alphabet
  • alphabetic character
  • Latin alphabet
  • Roman alphabet

Antonyms

  • legitimate
  • right
  • superior

5. A

noun. the basic unit of electric current adopted under the Systeme International d'Unites.

Synonyms

  • milliampere
  • abampere
  • mA
  • abamp
  • current unit
  • amp

6. A

noun. one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose).

Synonyms

  • deoxyadenosine monophosphate
  • nucleotide

7. a

noun. ['ə, ˈeɪ'] the 1st letter of the Roman alphabet.

Synonyms

  • A
  • letter of the alphabet
  • alphabetic character
  • Latin alphabet
  • Roman alphabet

Etymology

  • a (Middle English (1100-1500))

8. A

noun. the blood group whose red cells carry the A antigen.

Synonyms

  • blood type
  • type A
  • blood group

Antonyms

  • exon
  • outfield
  • noble
  • incidental

9. A

noun. any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes.

Synonyms

  • fat-soluble vitamin
  • antiophthalmic factor
  • dehydroretinol
  • vitamin A1
  • axerophthol
  • retinol
  • vitamin A2

10. A

noun. (biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA.

Synonyms

  • purine
  • DNA
  • deoxyribonucleic acid
  • RNA
  • ribonucleic acid
  • desoxyribonucleic acid
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