Word familynounroundelayroundleroundletroundelrowndell
round·el /ˈraʊndəl/ noun [countableC]
a circular design, for example one used to make a military aircraft recognizable 〔军用飞机等的〕圆形识别标志
Examples from the Corpus
roundel• The main themes were decorated pillars, trefoils and roundels.• Indeed, it shares with it some elements of decoration, e.g. a band of wavecrest pattern around the central roundel.• These figures are in the central roundel, while active seabeasts occupy the semi-roundels.• Number three has a quite different style of roundel and, to me it looks as if the tail stripe colours are reversed!• Number five appears to have a very strange roundel.