See Also: rhythm method(medicine)
rhythm method(dictionary)
rhythm(dictionary)
tic-tac rhythm(medicine)
Rhythm(medicine)
rhythm(dictionary)
reciprocal rhythm(medicine)
quadruple rhythm(medicine)
quadrigeminal rhythm(medicine)
delta rhythm(medicine)

ozone (oh) and rhythm method (oh)


ozone (oh)



[Date: 1800-1900; Language: German; Origin: ozon, from Greek, from ozein 'to smell']
technical a poisonous blue gas that is a type of oxygen
informal air near the sea, thought to be fresher and healthier

rhythm method (oh)



n [singular]
a method of birth control which depends on having sex only at a time when the woman is not likely to become pregnant