bur oak
- noun
- /bɜr oʊk/
- US
:
roble bur
- Farmers often plant bur oaks to enhance the conservation of soil erosion.
- bur oak tree
- bur oaks grow
Examples
-
Ghost Horse did not bury me in the ground or build a scaffold, but placed me near the crown of a majestic bur oak tree.
Fiction book (1994) -
In the park, a majestic bur oak provides shade on a hot summer day.
-
The sturdy bur oak is known for its deeply fringed acorn cups.
Synonyms
A large oak tree from North America that loses its leaves, with very big acorns and thick rough bark
A medium to large North American tree with acorns in deep fringed cups
A large tree with leaves that fall in winter and big acorns in mossy cups
Surface Forms
Morphology
bur + oak
The compound is partially compositional: 'oak' clearly signals a type of tree, but 'bur' is obscure in the provided data (not listed) and refers to a specific seed‑case/‘burr’ sense in botanical use. A learner who knows both constituents could infer this is a kind of oak, but the precise botanical sense and name are lexicalized and not fully predictable, so transparency is limited.
Etymology
Bur oak gets its name from the tree's rough acorn cups that look like small 'burrs', little seed cases that can stick to clothes. So the bur part points to those strange acorns and the oak part tells you it is a kind of tree.
