twice-yearly
adv1
Twice each year; semi-yearly; biannually.
UK & Commonwealth
twice-yearly
adj1
Happening twice each year; semi-annual; biannual.
- While the migrations of many butterflies now appear to be twice-yearly movements away from and back to the same areas, they differ from those of birds in ...1950, British Ecological Society, “The Journal of Animal Ecology”, in Science, Blackwell, page 66:
- At the twice-yearly IATA timetable co-ordination meetings, airlines from ...1992, Rigas Doganis, The Airport Business, Routledge, →ISBN, page 101:
1 more example
- Twice-Yearly Surveys of Affluent Americans2008, The American Affluence Research Centre website: