In 1945, a woman named Beulah Hunter, who was 25 at the time, gave birth to a healthy, normal daughter named Penny Diana after the record-breaking pregnancy. According to the New Health Guide, the length of the pregnancy was verified by her menstrual cycle and the date of her positive pregnancy test.
In chemistry, a ketone (alkanone) /ËkiËtoÊn/ is an organic compound with the structure RC(=O)R', where R and R' can be a variety of carbon-containing substituents. Ketones and aldehydes are simple compounds that contain a carbonyl group (a carbon-oxygen double bond).
ketone. 1  any of a class of organic compounds containing a carbonyl group, CO, attached to two alkyl groups, as CH 3 COCH 3 or CH 3 COC 2 H 5 2  . containing the ketone group.