PENNULE Meaning and
Definition
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Pennule is a noun that refers to a small, feather-like structure found in birds and some other animals. The term is primarily used in the field of ornithology to describe the small, soft, and delicate feathers that grow in the gaps and margins of larger flight feathers, such as the primary and secondary feathers.
Pennules are composed of a fine shaft, known as the rachis, which supports numerous thin barbs on both sides. These barbs further branch into even smaller barbules that interlock with one another to give the feather its overall structure. Pennules have a vital role in providing insulation, aiding in flight maneuverability, and facilitating water repellence in the wings and other delicate areas of the bird's body.
These delicate structures are often found on the trailing edges of the wings or along the leading edges of large feathers. They play a crucial role in shaping and stabilizing the aerodynamic profile of the wings during flight, assisting in lift generation and reducing drag.
The word "pennule" finds its origin in the Latin word "penna," meaning "feather." It is typically used in scientific literature, ornithological research, and discussions related to bird anatomy and avian flight mechanics.
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A small feather or division of a feather.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Common Misspellings for PENNULE
- penule
- pennel
- pannule
- pennle
- oennule
- lennule
- 0ennule
- pwnnule
- psnnule
- pdnnule
- prnnule
- p4nnule
- p3nnule
- pebnule
- pemnule
- pejnule
- pehnule
- penbule
- penmule
- penjule
Etymology of PENNULE
The word "pennule" does not have an established etymology. It appears to be a specialized term used in certain domains, such as ornithology and entomology, to refer to the small feathers or wing scales found on birds or insects. Given its limited usage, it is difficult to trace the etymology of the word. It may be derived from a combination of the Latin word "penna" meaning "feather" and a diminutive suffix, but this is speculative and not definitive.
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