International Student Immunization Requirements. Measles, Mumps and Rubella (MMR) Two doses of measles vaccine given at least 30 days apart on or after the first birthday or physician documentation of measles disease or a lab test documenting immunity to measles disease.
Rhombus plural: rhombi. Definition: A quadrilateral with all four sides equal in length. Try this Drag the orange dots on each vertex to reshape the rhombus. Notice how the four sides remain the same length and the opposite sides remain parallel. A rhombus is actually just a special type of parallelogram.
Rhombuses. Definition: A rhombus is a quadrilateral with four congruent sides. Similar to the definition of a rectangle, we could have used the word parallelogram instead of quadrilateral in our definition of rhombus.