[ 'trʌɪlə(ʊ)bʌɪt , 'trɪ- ]
■ noun a fossil marine arthropod of the Palaeozoic era, with a segmented rear part divided longitudinally into three lobes.
Origin
C19: from mod. L. Trilobites , from Gk tri- 'three' + lobos 'lobe'.
[ 'trʌɪlə(ʊ)bʌɪt , 'trɪ- ]
■ noun a fossil marine arthropod of the Palaeozoic era, with a segmented rear part divided longitudinally into three lobes.
Origin
C19: from mod. L. Trilobites , from Gk tri- 'three' + lobos 'lobe'.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004