Adjective
Having a dome-shaped head.
Usage- not-comparable
- of a screw
- Examples
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The roundhead screw and its fraternal twins, the button head and pan head screws, have a head that is flat on the bottom and hemispherical on top.
You can use flat-head screws and plug the holes, or you can use roundhead blue screws and let the heads project.
Noun
A roundhead screw, one with a domed head.
A male whose penis is circumcised.
Usage- Slang
- Examples
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The roundheads in the school showers easily equalled the cavaliers.
More examples (2)
Since penile preference is so tied up with personal aesthetics and body image, it seems both logical and fair to leave the choice of cavalier or roundhead to the owner of the organ, thus avoiding the sort of life-long pain expressed in a comment like this:[…]
I knew about the English Civil War, Cavaliers (wrong but romantic) versus Roundheads (right but repulsive), but I didn't think that was what he was talking about. I shook my head. “It means our willies aren't circumcised,” he explained. “Are you a cavalier or a roundhead?”
A circular platform at the end of a pier or breakwater.
- Examples
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More examples (3)
The top of the caisson will be at the same level as the bag-work foundation of the pier, and a roundhead, composed of 45-ton granite faced concrete blocks, will be built on it.
The smallness of the damage done at Purfleet is remarkable, when it is remembered that the impact of a large steamship is sufficient to cut deeply into solid masonry piers, and that only in 1907 the effect of a collision against the souther breakwater of the Admiralty Harbour, Dover, was to sever the roundhead entirely from the body of the pier, in addition to causing other serious injuries.
The breakwater, and in particular the roundhead, has been the responsibility of Jersey Harbours for many years but day to day maintenance and isolated repairs were becoming more frequent, punctuated by emergency repair works to the face of the roundhead at the extreme end of the breakwater.
Any of various agarics of the genus Stropharia.
Noun
a brachycephalic person