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heptastich

American  
[hep-tuh-stik] / ˈhɛp təˌstɪk /

noun

Prosody.
  1. a strophe, stanza, or poem consisting of seven lines or verses.


heptastich British  
/ ˈhɛptəˌstɪk /

noun

  1. prosody a poem, strophe, or stanza that consists of seven lines

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of heptastich

First recorded in 1880–85; hepta- + stich 1