noun
- the plural of pinna; the external parts of the ears or leaflets of a compound leaf
Usage: anatomical and botanical term
Examples
- The doctor examined the patient’s pinnae for signs of infection.
- The fern’s pinnae were arranged in a delicate pattern along the stem.
- Damage to the pinnae can affect hearing ability.
- Each pinna of the compound leaf had serrated edges.
- The botanist counted the pinnae on each frond.
- Cold weather can cause the pinnae to become red and painful.