dupleform
adjectiveUK /ˈdjuːplɪfɔːm/
US /ˈduːplɪfɔːrm/
Having two parts or two shapes.
The dupleform leaf looked like two leaves joined together.
OTHER MEANINGS
2. Existing in two distinct versions or varieties.
The dupleform story appeared in both a short and a long version.
3. Made of two connected sections.
The dupleform bridge had two spans side by side.
4. Able to take on two different appearances.
The dupleform cloud looked like a rabbit, then like a boat.