Etiolation
WordNet
noun
(1) (botany) the act of causing a plant to develop without chlorophyll by growing it without exposure to sunlight
"The etiolation of celery"
(2) The act of weakening by stunting the growth or development of something
"The etiolation of the critical tradition"
(3) A pale and sickly appearance
"His etiolation signaled years in prison"