squar·rose \ˈskwäˌrōs, -waˌr-\adjective alsosquar·rous\-_rəs\ Etymology: Latin squarrosus scurfy, scabby; akin to Old Slavic skvrǔna filth : rough with divergent scales or processes; especially: having stiff spreading bracts < a squarrose involucre > • squar·rose·lyadverb