lampbase
nounUK /ˈlæmpbeɪs/
US /ˈlæmpbeɪs/
The bottom part of a lamp that holds it up.
The lampbase is heavy so the lamp does not fall over.
OTHER MEANINGS
2. The part of a lamp where the bulb screws in.
He screwed the new bulb into the lampbase.
3. A base shaped like a lamp or used for a lamp.
The vase has a wide lampbase shape.
4. The foundation or support of a lamp in a table or floor model.
The floor lampbase is made of dark wood.