If someone keeps a vigil or keeps vigil somewhere, they remain there quietly for a period of time, especially at night, for example because they are praying or are making a political protest. â¦ keep vigil phrase V inflects, usu PHR prep/adv.
SEBS stands for Styrene Ethylbutylene Styrene (elastomeric material) Suggest new definition. This definition appears very rarely and is found in the following Acronym Finder categories: Science, medicine, engineering, etc.
A polychlorinated biphenyl (PCB; CAS number 1336-36-3) is a synthetic organic chemical compound of chlorine attached to biphenyl, which is a molecule composed of two benzene rings. There are 209 configurations of organochlorides with 1 to 10 chlorine atoms.