sham ‧ rock /ˈʃæmrɒk $ -rɑːk/ BrE AmE noun [countable]
[ Date: 1500-1600 ; Language: Irish Gaelic ; Origin: seamrog ]
a small plant with three green leaves on each stem, that is the national symbol of Ireland
sham ‧ rock /ˈʃæmrɒk $ -rɑːk/ BrE AmE noun [countable]
[ Date: 1500-1600 ; Language: Irish Gaelic ; Origin: seamrog ]
a small plant with three green leaves on each stem, that is the national symbol of Ireland
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012