Source : Webster's Revised Unabridged Dictionary (1913)

Litter \Lit"ter\, v. i.
   1. To be supplied with litter as bedding; to sleep or make
      one's bed in litter. [R.]

            The inn Where he and his horse littered.
                                                  --Habington.

   2. To produce a litter.

            A desert . . . where the she-wolf still littered.
                                                  --Macaulay.

Litter \Lit"ter\, v. t. [imp. & p. p. {Littered}; p. pr. & vb.
   n. {Littering}.]
   1. To supply with litter, as cattle; to cover with litter, as
      the floor of a stall.

            Tell them how they litter their jades. --Bp. Hacke?.

            For his ease, well littered was the floor. --Dryden.

   2. To put into a confused or disordered condition; to strew
      with scattered articles; as, to litter a room.

            The room with volumes littered round. --Swift.

   3. To give birth to; to bear; -- said of brutes, esp. those
      which produce more than one at a birth, and also of human
      beings, in abhorrence or contempt.

            We might conceive that dogs were created blind,
            because we observe they were littered so with us.
                                                  --Sir T.
                                                  Browne.

            The son that she did litter here, A freckled whelp
            hagborn.                              --Shak.

Litter \Lit"ter\, n. [F. liti[`e]re, LL. lectaria, fr. L. lectus
   couch, bed. See {Lie} to be prostrated, and cf. {Coverlet}.]
   1. A bed or stretcher so arranged that a person, esp. a sick
      or wounded person, may be easily carried in or upon it.

            There is a litter ready; lay him in 't. --Shak.

   2. Straw, hay, etc., scattered on a floor, as bedding for
      animals to rest on; also, a covering of straw for plants.

            To crouch in litter of your stable planks. --Shak.

            Take off the litter from your kernel beds. --Evelyn.

   3. Things lying scattered about in a manner indicating
      slovenliness; scattered rubbish.

            Strephon, who found the room was void. Stole in, and
            took a strict survey Of all the litter as it lay.
                                                  --Swift.

   4. Disorder or untidiness resulting from scattered rubbish,
      or from thongs lying about uncared for; as, a room in a
      state of litter.

   5. The young brought forth at one time, by a sow or other
      multiparous animal, taken collectively. Also Fig.

            A wolf came to a sow, and very kindly offered to
            take care of her litter.              --D. Estrange.

            Reflect upon numerous litter of strange, senseless
            opinions that crawl about the world.  --South.

Source : WordNet®

litter
     n 1: the offspring at one birth of a multiparous mammal
     2: rubbish carelessly dropped or left about (especially in
        public places)
     3: conveyance consisting of a chair or bed carried on two poles
        by bearers
     4: material used to provide a bed for animals [syn: {bedding
        material}, {bedding}]
     v 1: strew; "Cigar butts littered the ground"
     2: make a place messy by strewing garbage around
     3: give birth to a litter of animals