VSO is a three-letter acronym with multiple meanings, as described below:

Welsh Syntax and VSO Structure
Direct synthesis of dimethyl carbonate (DMC) using Cu-Ni/VSO as catalyst
English as a VSO Language
VSO and VOS: Aspects of Niuean word order
Principles and parameters in a VSO language : a case study in Welsh
VP-Internal Subjects in VSO and Nonconfigurational Languages
Cesarean delivery and anal sphincter injury.
The volume-sensitive organic osmolyte-anion channel VSOAC is regulated by nonhydrolytic ATP binding
Altered properties of volume‐sensitive osmolyte and anion channels (VSOACs) and membrane protein expression in cardiac and smooth m...
WATER SCIENCE AND TECHNOLOGY