Definition of trabecula
1
: a small bar, rod, bundle of fibers, or septal membrane in the framework of a body organ or part
2
: a fold, ridge, or bar projecting into or extending from a plant part
especially
: a row of cells bridging an intercellular space
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Merriam-Webster unabridged
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Time Traveler for trabecula
The first known use of trabecula was circa 1866
See more words from the same year