ell: ηλιοτρόπιο

Information
has URI	http://lexvo.org/id/term/ell/%CE%B7%CE%BB%CE%B9%CE%BF%CF%84%CF%81%CF%8C%CF%80%CE%B9%CE%BF

Meaning
means	(noun) a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator litmus test, litmus