hard rubber

from WordNet (r) 3.0 (2006)
hard rubber
    n 1: a hard nonresilient rubber formed by vulcanizing natural
         rubber [syn: {hard rubber}, {vulcanite}, {ebonite}]
    
from The Collaborative International Dictionary of English v.0.48
Hard \Hard\ (h[aum]rd), a. [Compar. {Harder} (-[~e]r); superl.
   {Hardest}.] [OE. hard, heard, AS. heard; akin to OS. & D.
   hard, G. hart, OHG. herti, harti, Icel. har[eth]r, Dan.
   haard, Sw. h[*a]rd, Goth. hardus, Gr. kraty`s strong,
   ka`rtos, kra`tos, strength, and also to E. -ard, as in
   coward, drunkard, -crat, -cracy in autocrat, democracy; cf.
   Skr. kratu strength, k[.r] to do, make. Cf. {Hardy}.]
   1. Not easily penetrated, cut, or separated into parts; not
      yielding to pressure; firm; solid; compact; -- applied to
      material bodies, and opposed to {soft}; as, hard wood;
      hard flesh; a hard apple.
      [1913 Webster]

   2. Difficult, mentally or judicially; not easily apprehended,
      decided, or resolved; as a hard problem.
      [1913 Webster]

            The hard causes they brought unto Moses. --Ex.
                                                  xviii. 26.
      [1913 Webster]

            In which are some things hard to be understood. --2
                                                  Peter iii. 16.
      [1913 Webster]

   3. Difficult to accomplish; full of obstacles; laborious;
      fatiguing; arduous; as, a hard task; a disease hard to
      cure.
      [1913 Webster]

   4. Difficult to resist or control; powerful.
      [1913 Webster]

            The stag was too hard for the horse.  --L'Estrange.
      [1913 Webster]

            A power which will be always too hard for them.
                                                  --Addison.
      [1913 Webster]

   5. Difficult to bear or endure; not easy to put up with or
      consent to; hence, severe; rigorous; oppressive;
      distressing; unjust; grasping; as, a hard lot; hard times;
      hard fare; a hard winter; hard conditions or terms.
      [1913 Webster]

            I never could drive a hard bargain.   --Burke.
      [1913 Webster]

   6. Difficult to please or influence; stern; unyielding;
      obdurate; unsympathetic; unfeeling; cruel; as, a hard
      master; a hard heart; hard words; a hard character.
      [1913 Webster]

   7. Not easy or agreeable to the taste; harsh; stiff; rigid;
      ungraceful; repelling; as, a hard style.
      [1913 Webster]

            Figures harder than even the marble itself.
                                                  --Dryden.
      [1913 Webster]

   8. Rough; acid; sour, as liquors; as, hard cider.
      [1913 Webster]

   9. (Pron.) Abrupt or explosive in utterance; not aspirated,
      sibilated, or pronounced with a gradual change of the
      organs from one position to another; -- said of certain
      consonants, as c in came, and g in go, as distinguished
      from the same letters in center, general, etc.
      [1913 Webster]

   10. Wanting softness or smoothness of utterance; harsh; as, a
       hard tone.
       [1913 Webster]

   11. (Painting)
       (a) Rigid in the drawing or distribution of the figures;
           formal; lacking grace of composition.
       (b) Having disagreeable and abrupt contrasts in the
           coloring or light and shade.
           [1913 Webster]

   {Hard cancer}, {Hard case}, etc. See under {Cancer}, {Case},
      etc.

   {Hard clam}, or {Hard-shelled clam} (Zool.), the quahog.

   {Hard coal}, anthracite, as distinguished from {bituminous
      coal} ({soft coal}).

   {Hard and fast}. (Naut.) See under {Fast}.

   {Hard finish} (Arch.), a smooth finishing coat of hard fine
      plaster applied to the surface of rough plastering.

   {Hard lines}, hardship; difficult conditions.

   {Hard money}, coin or specie, as distinguished from paper
      money.

   {Hard oyster} (Zool.), the northern native oyster. [Local, U.
      S.]

   {Hard pan}, the hard stratum of earth lying beneath the soil;
      hence, figuratively, the firm, substantial, fundamental
      part or quality of anything; as, the hard pan of
      character, of a matter in dispute, etc. See {Pan}.

   {Hard rubber}. See under {Rubber}.

   {Hard solder}. See under {Solder}.

   {Hard water}, water, which contains lime or some mineral
      substance rendering it unfit for washing. See {Hardness},
      3.

   {Hard wood}, wood of a solid or hard texture; as walnut, oak,
      ash, box, and the like, in distinction from pine, poplar,
      hemlock, etc.

   {In hard condition}, in excellent condition for racing;
      having firm muscles; -- said of race horses.

   Syn: Solid; arduous; powerful; trying; unyielding; stubborn;
        stern; flinty; unfeeling; harsh; difficult; severe;
        obdurate; rigid. See {Solid}, and {Arduous}.
        [1913 Webster]
    
from The Collaborative International Dictionary of English v.0.48
Rubber \Rub"ber\, n.
   1. One who, or that which, rubs. Specifically:
      (a) An instrument or thing used in rubbing, polishing, or
          cleaning.
      (b) A coarse file, or the rough part of a file.
      (c) A whetstone; a rubstone.
      (d) An eraser, usually made of caoutchouc or a synthetic
          rubber[4].
      (e) The cushion of an electrical machine.
      (f) One who performs massage, especially in a Turkish
          bath.
      (g) Something that chafes or annoys; hence, something that
          grates on the feelings; a sarcasm; a rub. --Thackeray.
          [1913 Webster]

   2. In some games, as bridge or whist, the odd game, as the
      third or the fifth, which decides the winner when there is
      a tie between the players; as, to play the rubber; also, a
      contest determined by the winning of two out of three
      games; as, to play a rubber of whist. --Beaconsfield. "A
      rubber of cribbage." --Dickens.
      [1913 Webster]

   3. India rubber; caoutchouc; gum elastic; -- also called
      {natural rubber}.
      [1913 Webster +PJC]

   4. Any substance, whether natural or synthetic, resembling
      India rubber with respect to its elasticity[1].
      [PJC]

   5. A low-cut overshoe made of natural or synthetic rubber[4],
      serving to keep the feet and shoes dry when walking in the
      rain or on a wet surface; -- usually used in the plural.
      [1913 Webster]

   6. A {condom}. [Slang]
      [PJC]

   {Antimony rubber}, an elastic durable variety of vulcanized
      caoutchouc of a red color. It contains antimony sulphide
      as an important constituent.

   {Hard rubber}, a kind of vulcanized caoutchouc which nearly
      resembles horn in texture, rigidity, etc.

   {India rubber}, caoutchouc. See {Caoutchouc}.

   {Rubber cloth}, cloth covered with caoutchouc for excluding
      water or moisture.

   {Rubber dam} (Dentistry), a shield of thin sheet rubber
      clasped around a tooth to exclude saliva from the tooth.
      [1913 Webster]
    

[email protected]