blood group, blood type - people whose blood (usually just the red blood cells) has the same antigens

metric linear unit - a linear unit of distance in metric terms

micromicron, picometer, picometre - a metric unit of length equal to one trillionth of a meter

micromillimeter, micromillimetre, millimicron, nanometer, nanometre, nm - a metric unit of length equal to one billionth of a meter

fat-soluble vitamin - any vitamin that is soluble in fats

retinol, vitamin A1 - an unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene

dehydroretinol, vitamin A2 - a viscous alcohol that is less active in mammals than is vitamin A1

nucleotide - a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)

biochemistry - the organic chemistry of compounds and processes occuring in organisms; the effort to understand biology within the context of chemistry

purine - any of several bases that are derivatives of purine

deoxyribonucleic acid, desoxyribonucleic acid, DNA - (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"

ribonucleic acid, RNA - (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"

current unit - a measure of the amount of electric charge flowing past a circuit point at a specific time

milliampere, mA - one thousandth of an ampere

abamp, abampere - a unit of current equal to 10 amperes

Latin alphabet, Roman alphabet - the alphabet evolved by the ancient Romans which serves for writing most of the languages of western Europe

alphabetic character, letter of the alphabet, letter - the conventional characters of the alphabet used to represent speech; "his grandmother taught him his letters"