palms is a form of:

Aqueduct



noun
1.
(an artificial channel for conveying water either under or aboveground) ជលមាគ៌, ប្រឡាយទឹកម្យ៉ាង, ផ្លូវនាំទឹក
2.
(វេជ្ជសាស្ត្រ) បំពង់ដែលនាំវត្ថុរាវពីផ្នែកមួយនៃដងខ្លួនទៅផ្នែកមួយទៀត
  • cerebral aqueduct
    - រន្ធដែលភ្ជាប់គ្នារវាងថតទីបីនិងទីបួននៃខួរក្បាល
ENGLISH MEANING
noun
1.
A conductor, conduit, or artificial channel for conveying water, especially one for supplying large cities with water.
2.
A canal or passage; as, the aqueduct of Sylvius, a channel connecting the third and fourth ventricles of the brain.