Hyaline

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.