| PTE | genus of terrestrial orchids of Australia and New Zealand and western Pacific |
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| PTE | a B vitamin that is essential for cell growth and reproduction |
| PTE | a B vitamin that is essential for cell growth and reproduction |
| PTE | a thickened triangular layer of conjunctiva extending from the nasal edge of the eye to the cornea |
| PTE | muscle descending from the sphenoid bone to the lower jaw |
| PTE | a plexus of veins draining the region of the pterygoid muscles and draining into the internal maxillary and anterior facial veins |
| PTE | two bony processes descending from the body of the sphenoid bone |