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‘He was one of the most penetrating geometers of our age: his discoveries in geometry place him in the first rank among the successors of Chasles and Poncelet.’
‘He formed his own group of young geometers and together they wrote teaching texts, as well as the 4 volumes of a differential geometry text, later translated in German and French.’
‘The issue of how to help students get started learning algebraic geometry is a question that almost every practicing algebraic geometer would answer differently.’
‘Halley suggested to him that he might devote his considerable talents to the restoration of the work of the early Greek geometers, such as Euclid and Apollonius of Perga.’
‘Our greatest debt to Lefschetz lies in the fact that he showed us that a study of topology was essential for all algebraic geometers.’
2Biology A geometrid moth or its caterpillar.
‘Little is known of the life history of the larvae of geometer moths.’
‘The body of geometer moths is thin and more fragile looking than in other macromoths.’
‘Most of the geometer moths captured were in floral lure traps, while both species of Plusiinae were trapped exclusively in floral lure traps.’
‘The larva of geometer moths, the familiar inchworms, feed on mulberry leaves.’
Origin
Late Middle English: from late Latin geometra, based on Greek geōmetrēs, from gē earth + metrēs measurer.