pinna
- noun
- /ˈpɪnə/
- Specialized
- The plant's leaves are composed of several small pinna, each contributing to its overall beauty.
Examples
-
The biologist described the unique structure of each pinna found on the fern, highlighting their intricate patterns.
-
The input to the microphone is the free-field sound pressure generated by an ideal loudspeaker because no pinna or head effects are present.
Academic text (1990) -
The pinna effects, which convert the free-field excitation into the pressure at the microphone, have not been included because they are equivalent to a modification of the excitation signal and can be added at a later date if needed.
Academic text (1990) -
It would be more useful, if not practical, to employ an omnidirectional microphone near the canal entrance and offer the wearer the benefits of pinna filtering.
Academic text (1990) -
A fern's pinna can often be mistaken for a leaf due to its distinct shape and arrangement.
Surface Forms
Etymology
The word pinna comes from the Latin pinna, which meant 'feather' or 'wing', so in plants a pinna is a small 'feather-like' part of a leaf. This helps you imagine a fern with many little leaflets like the feathers on a bird.