[ 'ɔ:tʃɪl ]
■ noun
1》 a red or violet dye obtained from lichen, used as a source of litmus.
2》 a lichen which produces this dye. [ Roccella and other genera.]
Origin
C15: from OFr. orcheil , related to Sp. urchilla .
[ 'ɔ:tʃɪl ]
■ noun
1》 a red or violet dye obtained from lichen, used as a source of litmus.
2》 a lichen which produces this dye. [ Roccella and other genera.]
Origin
C15: from OFr. orcheil , related to Sp. urchilla .
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004