two-part base

noun
UK /ˌtuː pɑːt ˈbeɪs/
US /ˌtuː pɑːrt ˈbeɪs/

A base made of two separate pieces that fit together.

The model rocket sat on a two-part base, one piece for the launch pad and one for the stand.


OTHER MEANINGS

2. A chemical base composed of two distinct components mixed together.

The cleaning solution used a two-part base that had to be combined just before use.

3. In grammar, a verb root made of two parts, such as a phrasal verb stem.

The teacher explained that 'set up' comes from a two-part base.

4. A military or expedition base split into two separate camps or areas.

The explorers set up a two-part base, with tents on each side of the river.