[W/K] :: Hemorrhoids

  Hemorrhoids \Hem"or*rhoids\, n. pl. [L. haemorrhoidae, pl., Gr.
     ?, sing., ? (sc. ?), pl., veins liable to discharge blood,
     hemorrhoids, fr. ? flowing with blood; a"i^ma blood + ? to
     flow: cf. F. h['e]morro["i]des, h['e]morrho["i]des. See
     Rheum.] (Med.)
     Livid and painful swellings formed by the dilation of the
     blood vessels around the margin of, or within, the anus, from
     which blood or mucus is occasionally discharged; piles;
     emerods.
  
     Usage: [The sing. hemorrhoid is rarely used.]
            [1913 Webster]

  Piles \Piles\, n. pl. [L. pila a ball. Cf. Pill a medicine.]
     (Med.)
     The small, troublesome tumors or swellings about the anus and
     lower part of the rectum which are technically called
     hemorrhoids. See Hemorrhoids.
  
     Note: [The singular pile is sometimes used.]
           [1913 Webster]
  
     Blind piles, hemorrhoids which do not bleed.
        [1913 Webster]