noun
rachis
Rachis (noun) means the backbone, made up of the vertebrae.
noun
1
The backbone, made up of the vertebrae.
2
A shaft-like structural axis occurring in the body of a marine invertebrate.
"In some squid species, the pen rachis flares out into wings on either side, and the tip of the rachis grows into a thick cone."
— Danna Staaf, Squid Empire (2017)
3
The hard stem running down the middle of a bird's feather.
4
(botany) The main stalk that other parts, such as leaflets or flowers, grow out from on a plant.
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Etymology
From New Latin rhachis/rachis, from Ancient Greek ῥάχις (rhákhis, “spine, ridge”).
Synonyms
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Frequently asked questions
What is the meaning of rachis?
"rachis" (noun) means the backbone, made up of the vertebrae.
What is another word for rachis?
Other words for "rachis" include spine, backbone, back.
What are the different meanings of rachis?
"rachis" has 3 main meanings: 1. The backbone, made up of the vertebrae; 2. A shaft-like structural axis occurring in the body of a marine invertebrate; 3. The hard stem running down the middle of a bird's feather.
