Word Focus

focusing on words and literature





Definitions and Synonyms of a | Another word for a | What is a?

Definition 1: the blood group whose red cells carry the A antigen - [noun denoting body]

Synonyms for a in the sense of this definition

(a is a kind of ...) human blood cells (usually just the red blood cells) that have the same antigens

Definition 2: the 1st letter of the Roman alphabet - [noun denoting communication]

(a is a kind of ...) the conventional characters of the alphabet used to represent speech

"his grandmother taught him his letters"

(... is a member of a) the alphabet evolved by the ancient Romans which serves for writing most of the languages of western Europe

Definition 3: the basic unit of electric current adopted under the Systeme International d'Unites - [noun denoting quantity]

Samples where a or its synonyms are used according to this definition

  • a typical household circuit carries 15 to 50 amps

Synonyms for a in the sense of this definition

(a is a kind of ...) a measure of the amount of electric charge flowing past a circuit point at a specific time

(a is a part of ...) one thousandth of an ampere

(... is part of a) a unit of current equal to 10 amperes

Definition 4: a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation - [noun denoting quantity]

Synonyms for a in the sense of this definition

(a is a kind of ...) a linear unit of distance in metric terms

(a is a part of ...) a metric unit of length equal to one trillionth of a meter

(... is part of a) a metric unit of length equal to one billionth of a meter

Definition 5: any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes - [noun denoting substance]

Synonyms for a in the sense of this definition

(a is a kind of ...) any vitamin that is soluble in fats

(... is a kind of a ) an unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene

(... is a kind of a ) a viscous alcohol that is less active in mammals than is vitamin A1

Definition 6: one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose) - [noun denoting substance]

Synonyms for a in the sense of this definition

(a is a kind of ...) a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)

Definition 7: (biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA - [noun denoting substance]

Synonyms for a in the sense of this definition

(a is a kind of ...) any of several bases that are derivatives of purine

(... is made of the substance a) (biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information

"DNA is the king of molecules"

(... is made of the substance a) (biochemistry) a long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell where it is associated with microsomes; it transmits genetic information from DNA to the cytoplasm and controls certain chemical processes in the cell

"ribonucleic acid is the genetic material of some viruses"

(a belongs to category ...) the organic chemistry of compounds and processes occurring in organisms; the effort to understand biology within the context of chemistry

More words

Another word for 9th

Another word for 99

Another word for 98

Another word for 97

Another word for 96

Another word for a battery

Another word for a bit

Another word for a capella

Another word for a capella singing

Another word for a cappella


Other word for a cappella

a cappella meaning and synonyms

How to pronounce a cappella