Aero-Terms are designed to be a daily reminder of the terms,
names, acronyms and explanations of the unique language that
populates the aviation world. Aerospace, sport aviation, fixed
wing, helo, you name it... it's all fair game.
Aero-Terms should serve as a quick but intriguing reminder of
the terms you may use every day, or an introduction to an aspects
of the Aero-World you may not yet be familiar with. ANN also
encourages readers to go beyond the FMI link, and further research
any intriguing terms.
Slang for lumpy protrusions on the edges, and sometimes the
underside, of a thunderstorm anvil. They usually appear on the
upwind side of a back-sheared anvil, and indicate rapid expansion
of the anvil due to the presence of a very strong updraft. They are
not mammatus clouds. See also cumuliform anvil and anvil