diff --git a/Installation/CHANGES.md b/Installation/CHANGES.md
index cf0bf44aacd..a2f43f91d29 100644
--- a/Installation/CHANGES.md
+++ b/Installation/CHANGES.md
@@ -17,8 +17,10 @@ CGAL tetrahedral Delaunay refinement algorithm.
 
 ### [Tetrahedral Mesh Generation](https://doc.cgal.org/5.6/Manual/packages.html#PkgMesh3)
 
-- Added a mesh domain named constructor `CGAL::create_labeled_image_mesh_domain_with_features()` for automatic detection and protection
-of feature curves extracted from labeled images, for tetrahedral mesh generation.
+- Added a mesh domain named constructor `CGAL::create_labeled_image_mesh_domain_with_features()`
+for automatic detection and protection
+of 1D-curves that lie at the intersection of three or more subdomains,
+extracted from labeled images.
 
 
 [Release 5.5](https://github.com/CGAL/cgal/releases/tag/v5.5)
diff --git a/Mesh_3/doc/Mesh_3/CGAL/Labeled_mesh_domain_3.h b/Mesh_3/doc/Mesh_3/CGAL/Labeled_mesh_domain_3.h
index 8ecb7ff3222..b3c96a48204 100644
--- a/Mesh_3/doc/Mesh_3/CGAL/Labeled_mesh_domain_3.h
+++ b/Mesh_3/doc/Mesh_3/CGAL/Labeled_mesh_domain_3.h
@@ -27,7 +27,8 @@ static template member functions that act as named constructors:
 <li>`create_implicit_mesh_domain()`, to create a domain from an implicit function,
 <li>`create_labeled_image_mesh_domain()`, to create a domain from a 3D labeled image, and
 <li>`create_labeled_image_mesh_domain_with_features()`, to create a domain from a 3D labeled image
-with automatically detected triple lines.
+with automatically detected 1D-curves that lie
+at the intersection of three or more subdomains.
 </ul>
 
 \tparam BGT is a geometric traits class that provides