(chemistry) A cyclic compound in which a metal atom is bonded to at least two other atoms.

(chemistry) an organic compound of the general formula R-N=N-R¹; they are often coloured and are the basis of many synthetic dyes; a diazene

(chemistry) an organic compound having at least one metal-to-carbon bond

(chemistry) a compound whose molecule undergoes rapid intramolecular rearrangements among equivalent structures in which the component atoms are interchanged

(chemistry) A chemical compound composed of only two elements. / (chemistry) A compound composed of an element and a radical (a group of atoms that behave as one piece).

(banking, finance) Interest, as on a loan or a bank account, that is calculated on the total on the principal plus accumulated unpaid interest.

(chemistry) any of a class of compounds having five-membered ring heterocycles (or their benzo derivatives) which possess a sextet of π-electrons in association with the atoms comprising the ring, but which cannot be represented by any one covalent or polar structure; typically the ring structure contains both positive and negative delocalised charges which cannot be associated with any one ring atom, and the negative charge can also be associated with a conjugated exocyclic atom (typically oxygen, sulfur, or nitrogen).

(organic chemistry) Any compound which exhibits aromaticity.

(obsolete, organic chemistry) Synonym of oxime

(chemistry) a macrocycle