superposition

Superposition has 5 syllables: su · per · po · si · tion.

noun. (geology) the principle that in a series of stratified sedimentary rocks the lowest stratum is the oldest.

noun. (geology) the deposition of one geological stratum on another.

noun. (geometry) the placement of one object ideally in the position of another one in order to show that the two coincide.

noun. The placement of one thing on top of another.