I. ˈsliŋə(r) noun
( -s )
Etymology: Middle English, from slingen to sling, hurl + -er
: one that slings or uses a sling as a weapon ; especially : a soldier of former times armed with a sling
II. noun
Etymology: sling (IV) + -er
1. : one that uses a sling (as to support, hoist, or carry) ; especially : a workman that attaches slings to articles for hoisting : rigger
2. : a device for centrifugally throwing oil into a bearing and usually also for keeping dirt from getting into it