What is "short meter"

Meter \Me"ter\, Metre \Me"tre\, n. [OE. metre, F. m[`e]tre, L. metrum, fr. Gr. ?; akin to Skr. m[=a] to measure. See Mete to measure.]

1. Rhythmical arrangement of syllables or words into verses, stanzas, strophes, etc.; poetical measure, depending on number, quantity, and accent of syllables; rhythm; measure; verse; also, any specific rhythmical arrangements; as, the Horatian meters; a dactylic meter.

   The only strict antithesis to prose is meter.
   --Wordsworth.

2. A poem. [Obs.]
   --Robynson (More's Utopia).

3. A measure of length, equal to 39.37 English inches, the standard of linear measure in the metric system of weights and measures. It was intended to be, and is very nearly, the ten millionth part of the distance from the equator to the north pole, as ascertained by actual measurement of an arc of a meridian. See Metric system, under Metric.

   Common meter (Hymnol.), four iambic verses, or lines, making a stanza, the first and third having each four feet, and the second and fourth each three feet; -- usually indicated by the initials C. M.

   Long meter (Hymnol.), iambic verses or lines of four feet each, four verses usually making a stanza; -- commonly indicated by the initials L. M.

   Short meter (Hymnol.), iambic verses or lines, the first, second, and fourth having each three feet, and the third four feet. The stanza usually consists of four lines, but is sometimes doubled. Short meter is indicated by the initials S. M.