vinylic groups

https://doi.org/10.1351/goldbook.V06622
The vinyl group (CH2=CH–) and derivatives formed by substitution. Informally, a group, such as –OH, attached to the free @V06588@ of a (substituted) vinyl group is sometimes referred to as 'vinylic'.
Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1374 [Terms] [Paper]