1. A child of one's aunt or uncle. Also called first cousin. 2. A relative descended from a common ancestor, such as a grandparent, by two or more steps in a diverging line. 3. A relative by blood or marriage; a kinsman or kinswoman. 4. A member of a kindred group or country: our Canadian cousins. 5.
Cyclohexanone is the organic compound with the formula (CH 2) 5 CO. The molecule consists of six-carbon cyclic molecule with a ketone functional group. This colorless oil has an odor reminiscent of peardrop sweets as well as acetone.Over time, samples assume a yellow color due to oxidation. Cyclohexanone is slightly soluble in water and miscible with common organic solvents.he molecule consists of six-carbon cyclic molecule with a ketone functional group. This colorless oil has an odor reminiscent of peardrop sweets as well as acetone. Over time, samples assume a yellow color due to oxidation.
The group of atoms that is largely responsible for the chemical behavior of a molecule is called a functional group. For instance, alcohols contain an alkane group and a hydroxyl group, OH. Methanol (CH3OH), ethanol (C2H5OH), and n-propanol (C3H7OH) are the first three alcohols of a homologous series. In each of the three, chemical reactions occur at the OH group, rather than at the less reactive alkane group.