noun
- the arrangement or condition of being pinnate; the state of having a feather-like or wing-like structure with parts arranged on either side of a central axis.
Usage: chiefly botanical and biological; technical term
Examples
- The pinnation of the fern's fronds makes them easily recognizable.
- Botanists study the pinnation patterns of compound leaves to classify plant species.
- The pinnation of the feather allows it to catch air efficiently during flight.
- Different types of pinnation can be observed across various plant families.