Englishfor English speakers
infectious
—
adjective
(= infective)
caused by infection or capable of causing infection
viruses and other infective agents
a carrier remains infective without himself showing signs of the disease
—
adjective
easily spread
fear is exceedingly infectious; children catch it from their elders
— Bertrand Russell
—
adjective
of or relating to infection
infectious hospital
infectious disease
RNA
—
noun
(= ribonucleic acid)
(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