Octameter(Chem) A molecule composed of eight monomer units bound to each other, usually in a linear array; as, an octomer formed of nucleotides is called an octonucleotide.
Octameter(Pros) A verse containing eight feet; as,Deep" in|to" the | dark"ness | peer"ing, | long" I | stood" there | wond'"ring, | fear"ing.
Century Dictionary and Cyclopedia
octameterIn prosody, consisting of eight measures (monopodies or dipodies).
noctameterIn prosody, a verse or period consisting of eight measures. This word is little used, except in the sense of ‘octapody’ by some writers on modern versification who confound measure with foot.
Webster's Revised Unabridged Dictionary
Cf.L. octameter, in eight feet. See Octa-, and meter
Verses of seven and eight feet are rare; they are called heptameter and octameter, respectively.
"English: Composition and Literature" by W. F. (William Franklin) Webster