The Collaborative International Dictionary of English v.0.48:

Franciscan \Fran*cis"can\, n. (R.C.Ch.)
   A monk or friar of the Order of St. Francis, a large and
   zealous order of mendicant monks founded in 1209 by St.
   Francis of Assisi. They are called also Friars Minor; and
   in England, Gray Friars, because they wear a gray habit.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Franciscan \Fran*cis"can\, a. [LL. Franciscus Francis: cf. F.
   franciscain.] (R. C. Ch.)
   Belonging to the Order of St. Francis of the Franciscans.
   [1913 Webster]

   Franciscan Brothers, pious laymen who devote themselves to
      useful works, such as manual labor schools, and other
      educational institutions; -- called also Brothers of the
      Third Order of St. Francis.

   Franciscan Nuns, nuns who follow the rule of St. Francis,
      esp. those of the Second Order of St. Francis, -- called
      also Poor Clares or Minoresses.

   Franciscan Tertiaries, the Third Order of St. Francis.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Franciscan
    adj 1: of or relating to Saint Francis of Assisi or to the order
           founded by him; "Franciscan monks"
    n 1: a Roman Catholic friar wearing the grey habit of the
         Franciscan order [syn: Franciscan, Grey Friar]

Moby Thesaurus II by Grady Ward, 1.0:

55 Moby Thesaurus words for "Franciscan":
   Albigensian, Augustinian, Augustinian Hermit, Austin Friar,
   Benedictine, Bernardine, Black Friar, Black Monk, Bonhomme,
   Brigittine, Capuchin, Carmelite, Carthusian, Catharist, Cistercian,
   Cluniac, Conventual, Crossed Friar, Crutched Friar, Dominican,
   Friar Minor, Gilbertine, Gray Friar, Hospitaler, Jesuit, Loyolite,
   Marist, Maryknoll, Minorite, Observant, Oratorian,
   Premonstratensian, Recollect, Recollet, Redemptorist, Sabbatarian,
   Templar, Trappist, Waldensian, White Friar, abstainer, anchorite,
   ascetic, begging hermit, bhikshu, dervish, fakir, flagellant,
   hermit, mendicant, preaching friar, puritan, sannyasi, yogi,
   yogin