染

to dye / to catch (a disease) / to acquire (bad habits etc) / to contaminate / to add color washes to a painting

(bound form) tree / (bound form) wood / unresponsive; numb; wooden

mountain spring

to infect / contagious

infectious disease / contagious disease / pestilence

infectious; contagious / infectiousness; transmissibility

untainted by even a speck of dust (idiom); selfless and incorruptible / spotless

source of an infection

printing and dyeing

epidemiology

azoic dyes

lit. to grow out of the mud unsullied (idiom) / fig. to be principled and incorruptible

upper respiratory tract infection