Haversian system
noun
variants
or less commonly haversian system
plural Haversian systems also haversian systems
: a cylindrical unit of bone consisting of a central Haversian canal surrounded by concentric layers of lamella (see lamella sense c) : osteon
The Haversian canals surround blood vessels and nerve fibers throughout the bone. … The canals and the surrounding lamellae are called a Haversian system …—
Jeong-Nam Kim et al.
Jeong-Nam Kim et al.Cite this Entry
“Haversian system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Haversian%20system. Accessed 12 Jul. 2025.
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Haversian system
noun
variants
also haversian system
: a cylindrical unit of bone consisting of a central Haversian canal surrounded by concentric layers of lamella (see lamella sense 1a) : osteon
A fully grown Haversian system shapes as a round or oval cylinder … and is composed of a central Haversian canal of blood vessels, nerves, loose connective tissue, and up to 20 concentric lamellae, all running in the longitudinal direction of a bone.—Zilan X. Lin et al., Materials Science and Engineering
Zilan X. Lin et al., Materials Science and EngineeringLove words? Need even more definitions?
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