The lighter sledges are used ' ' up-handed, " that is, for lifting and striking in a circular arc simply, over the work.
A 43° angle subtends an arc about ¾ meter long on a circle with a radius of 1 meter.
The more the backstay is tightened, the less the headstay will sag off to leeward, forming a rigid and more efficient arc along the luff of the genoa while beating to weather.
Used in the Ending of Sentence
When a double-handed person turned, the ropes would hit against each other, spiraling in lopsided arcs.
He troweled the coarse mix with a twist, leaving a pattern of arcs.
Meaning of arcs for the defined word.
Grammatically, this word "arcs" is a noun, more specifically, a noun form. It's also a verb, more specifically, a verb form.