elongate in WordNet English dictionary

1. make long or longer by pulling and stretching
   "stretch the fabric"
   elongate  stretch 
   

1. 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"
   elongate  elongated 
   
2. (of a leaf shape) long and narrow
   linear  elongate