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an anatomic structure with branches resembling a tree.
bronchial tree the bronchi and their branching structures; see color plates.
tracheobronchial tree the trachea, bronchi, and their branching structures; see color plates.
Anatomy Any branching structure—e.g., bronchial tree, vascular tree
Botany A perennial woody plant having a main trunk and usually a distinct crown
Evidence-based medicine A diagram of an algorithm for a particular process
Evolutionary biology A schematic which demonstrates the relatedness of organisms
Genetics A diagram with branches in descending lines showing relationships as to lineage

Patient discussion about tree

Q. Could i be allergic to trees? I have a lot of olive trees in my neighborhood and I have been told that olive trees are highly allergic.

A. Thanks a lot Brandon. I'll try your tip

Q. if someone is allergic to olive trees, does that mean they are allergic to olive oil as well?

A. I asked him, and he said he has no prob with olive oil.
Dinner was spectacular if i may add :)

More discussions about tree
References in periodicals archive ?
SAVANNA A African dance B Treeless land C Type of boxing who am I?
Most of the people of this world live on the sunlit, treeless prairies.
Curlew Sandpipers breed in boggy pools on the treeless tundra of northern Russia, and in some years they travel farther west than usual en route to their west African wintering grounds.
Kilimanjaro framed backdrops of Amboseli to the wildlife-rich confines of one of the world's largest calderas before ending your adventure on the treeless expanse of the Serengeti.
When emerald ash borer comes into a community, city streets lined with ash trees become treeless.
The three week delay means Huddersfield's showpiece square will be treeless well into the Christmas period and during tonight's Christmas Lights switch-on at The Piazza.
Hundreds of bears travel through the town from the flat, treeless, snow-covered tundra to floating sheets of ice on Hudson Bay every year right around October 31.
I AM sure we have all noticed the near completion of Broadgate, Trinity Street, Hales Street, Ironmonger Row and Bull Yard and the colossal amount of paving slabs used so that we can all benefit from the virtual treeless, grassless and flowerless areas to walk on.
Looking at the numbers, Holmgren's group identified three distinct ecosystem types: forest, savanna and a treeless state.
The Arctic region consists of a vast, ice-covered ocean, surrounded by treeless permafrost.
of new housing and its treeless acres, three-a.m, of mountains invisible