imperforate
/ɪmˈpɜːrfərɪt/
adjective
- Lacking a normal opening or passage; not perforated.
- The medical report described the condition as an imperforate structure that required surgery.
- The stamp collector noticed that the rare stamp was imperforate, meaning it had no perforations between stamps.
- In botany, some leaves are imperforate, with no holes or openings in their surface.
Antonyms