carpenters is a form of:

Epithelium



noun — Plural: Epithelia, Epitheliums
1.
(វេជ្ជសាស្ត្រ) ស្រទាប់ជាលិកាគ្របសរីរាង្គ ឬក្រាលជាភ្នាស
ENGLISH MEANING
noun — Plural: Epithelia, Epitheliums
1.
The superficial layer of cells lining the alimentary canal and all its appendages, all glands and their ducts, blood vessels and lymphatics, serous cavities, etc. It often includes the epidermis (i.e., keratin-producing epithelial cells), and it is sometimes restricted to the alimentary canal, the glands and their appendages, -- the term endothelium being applied to the lining membrane of the blood vessels, lymphatics, and serous cavities.