Compounds derived from
oxoacids $\ce{R_{k}E(=O)_{l}(OH)_{m}}$ ($l \neq 0$) by replacing $\ce{=O}$ by $\ce{=NR}$; thus tautomers of
amides. In organic chemistry an unspecified imidic acid is generally a carboximidic acid, $\ce{RC(=NR)(OH)}$. E.g. $\ce{RS(=NH)2(OH)}$ a sulfonodiimidic acid.
Source: PAC, 1995,
67, 1307. (
Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1342 [
Terms] [
Paper]