no obj.
1- poetic/literary move in a turbulent fashion〈诗/文〉打滚, 翻滚：
the streams foam and welter.
溪流冒着泡沫, 翻滚流动。
1.1
- lie steeped in blood with no help or care倒在血泊中（无助或无人照顾）。
1
- a large number of items in no order; a confused mass（杂乱的）一堆; 一片; 一批：
there's such a welter of conflicting rules.
有一大批杂乱的互相冲突的规定。
1.1
- a state of general disorder杂乱无章, 一片混乱：
the attack petered out in a welter of bloody, confused fighting.
那次攻击结果变成了一次血腥的、一片混乱的战斗。
词源
Middle English （in the sense 'writhe， wallow'）： from Middle Dutch， Middle Low German welteren.
- short for WELTERWEIGHT.WELTERWEIGHT的简称。