1. The placement of one thing on top of another
   "The geologist studied the superposition of rock layers to determine their relative ages"
    
2. (geometry) the placement of one object ideally in the position of another one in order to show that the two coincide
   "The teacher demonstrated the concept of congruence through superposition of triangles"
    
3. (geology) the deposition of one geological stratum on another
   "The principle of superposition helps geologists determine the relative ages of rock layers"
    
4. (geology) the principle that in a series of stratified sedimentary rocks the lowest stratum is the oldest
   "Geologists use the superposition principle to determine the relative ages of rock layers";
   - principle of superposition, superposition principle

Derived forms: superpositions

Type of: deposit, deposition, emplacement, location, placement, position, positioning, principle, rule

Encyclopedia: Superposition