A poetic base, consists of one quick syllable between two lengthy ones (- ˘ -).
In old prosody: A foot of three syllables, the initial and 3rd that tend to be very long, even though the second is short, the ictus or metrical tension resting both on very first or from the last syllable .
discussing a metrical pattern of poetry in which each base consists of 3 syllables, the initial and third which are stressed therefore the second is unstressed. This pattern is extremely unusual in English poetry.
Cretan: especially (without a capital page) placed on a type of verse. See II.