Source : Webster's Revised Unabridged Dictionary (1913)

   {Weak conjugation} (Gram.), the conjugation of weak verbs; --
      called also {new, or regular, conjugation}, and
      distinguished from the old, or irregular, conjugation.

   {Weak declension} (Anglo-Saxon Gram.), the declension of weak
      nouns; also, one of the declensions of adjectives.

   {Weak side}, the side or aspect of a person's character or
      disposition by which he is most easily affected or
      influenced; weakness; infirmity.

   {Weak sore} or {ulcer} (Med.), a sore covered with pale,
      flabby, sluggish granulations.