Dactylic tetrameter

Metrical feet and accents
Disyllables
 pyrrhic, dibrach
 iamb
 trochee, choree
 spondee
Trisyllables
  tribrach
  dactyl
  amphibrach
  anapaest, antidactylus
  bacchius
  cretic, amphimacer
  antibacchius
  molossus
See main article for tetrasyllables.

Dactylic tetrameter is a metre in poetry. It refers to a line consisting of four dactylic feet. "Tetrameter" simply means four poetic feet. Each foot has a stressed syllable followed by two unstressed syllables, the opposite of an anapest, sometimes called antidactylus to reflect this fact.