展てん延えん

noun, noun or participle which takes 'suru', transitive verb, intransitive verb

spreading out; stretching out; expansion; extension

Technical term used in contexts such as materials, geography, or abstract expansion. Often appears as a suru-verb.

• この素そ材ざいは熱ねつを加くわえると展てん延えんする。

  This material expands when heat is applied.

• 地ち図ず上じょうで領りょう土どの展てん延えんを示しめす。

  It shows the territorial expansion on the map.