The term 'hyaline', (Hel. ''hualinòs'' = glassish) literally refers to a substance with a glass-like appearance.
In common medical
histopathological usage, hyaline is a substance with a glassy, pink appearance after
haematoxylin and
eosin staining—most often an acellular, proteinaceous material.
Hyaline cartilage is the clear, shiny ("glass-like") cartilage of articular joints.
In other scientific fields, 'hyaline' may refer a specifically 'colorless' and '
transparent' substance.
References
IMA Mycological Glossary: Hyaline.
Taber's Cyclopedic Medical Dictionary, 19th Edition. Donald Venes ed. 1997 F.A. Davis. Page 1008.