sesquialteral

From Latin sesquialter + English -al, from sesqui (“a half and a”) + alter (“another, a second”).

• IPA^(key): /sɛskwɪˈaltərəl/

sesquialteral (not comparable)

1. (mathematics, archaic) Synonym of sesquialterate, 1½ times.
2. (music) Of or related to sesquialtera, 1½ notes.
3. (botany, archaic) Having full florets accompanied by lesser ones.
4. (botany, archaic) Having half as many stamens as petals.
5. (entomology, archaic) Occupying a third of a wing or including a smaller band or spot in a larger one.

• (music): sesquialter
• (entomology): sesquialterous

• “sesquialteral, adj.”, in OED Online ⁠, Oxford, Oxfordshire: Oxford University Press, 2022.