a wheeled vehicle that has two wheels and is moved by foot pedals | (heraldry) any of several conventional figures used on shields |
a single complete execution of a periodically repeated phenomenon | an early bicycle with a very large front wheel and small back wheel |
a periodically repeated sequence of events | a clergyman appointed to prepare condemned prisoners for death |
a series of poems or songs on the same theme | a judge of a probate court |
an interval during which a recurring sequence of events occurs | the expected or commonplace condition or situation |
the unit of frequency; one hertz has a periodic interval of one second (named for Heinrich Rudolph Hertz) | |