1. resembling or shaped like a helmet; having the form or appearance of a helmet
Usage: often used in botanical or zoological contexts to describe structures

Examples

• The flower had a helmetlike structure that protected its delicate stamens.
• The insect's helmetlike head covering provided protection from predators.
• The mushroom's helmetlike cap was distinctive and easy to identify.
• The warrior wore a helmetlike crown made of bronze and gold.
• The seed pod developed a helmetlike shape as it matured.