Naegele's rule -- (rule for calculating an expected delivery date; subtract three months from the first day of the last menstrual period and add seven days to that date)
dictionary, definition of, free online dictionary, online dictionary, English dictionary, dict, diction, dictonary, glossary, define, definitions, meaning, word of the day, spelling, pronunciation, dictio, dictiona, dic, dicti, dictionar
(TTS Sound)