| 释义 |
periodoscope|pɪərɪˈɒdəskəʊp|
[See -scope.]
(See quot. 1893.)
1848W. T. Smith (title) The Periodoscope, with its application to Obstetric Calculations and the Periodicities of the Sex. 1857in Mayne Expos. Lex. 1893Syd. Soc. Lex., Periodoscope, Obstet., a dial, constructed to help in calculating the day on which labour will most probably occur, invented by Tyler Smith. |