petricolousyoudaoicibaDictYouDict[petricolous 词源字典]
"Inhabiting rock; living on rocks; lithodomous", Mid 19th cent.; earliest use found in Robert Mayne (1808–1868). From scientific Latin petricola, specific name of a type of mollusc + -ous; compare -colous.[petricolous etymology, petricolous origin, 英语词源]