elongate

Adjective

• having notably more length than width; being long and slender
  • an elongate tail tapering to a point
    
  • the old man's gaunt and elongated frame
    

• (of a leaf shape) long and narrow

Verb

• make long or longer by pulling and stretching
  • stretch the fabric
    

Related words

• Synonyms: 
  elongated , linear , stretch