1. Small, rounded projections or notches along an edge or margin, especially on a leaf, shell, or architectural element.
Usage: Plural of crenature; commonly used in botany and biology to describe leaf margins.
2. In architecture, one of a series of squared notches or indentations in the top of a battlement or fortified wall.
Usage: Also called crenels; used in historical and architectural contexts.

Examples

• The oak leaf's crenatures give it a distinctive scalloped appearance.
• The botanist examined the crenatures along the margin of the fern frond.
• Medieval castles featured crenatures in their defensive walls to allow archers to shoot while remaining protected.
• The shell displayed fine crenatures that helped identify the species.
• Crenatures on the leaf edge are a key characteristic used to classify this plant variety.