Dictionary.net

A milky, product excreted from the latex canals of a variety of plant species that contain cauotchouc. Latex is composed of 25-35% caoutchouc, 60-75% water, 2% protein, 2% resin, 1.5% sugar & 1% ash. RUBBER is made by the removal of water from latex. (From Concise Encylopedia Biochemistry and Molecular Biology, 3rd ed) However, the term latex has been broadened in scope to include RUBBER and other synthetic polymers. Latexes are used as inert vehicles to carry antibodies or antigens in LATEX FIX ATION TESTS.

The gum obtained from the juice of many tropical plants.

Milky juice of a tree; elastic and insoluble in ordinary liquids.

The highly elastic juice or gum of a plant which grows in S. America and Asia: Indiarubber.

India rubber; the elastic gum of several tropical plants.

India rubber.

The Indian name for Indian Rubber, Elas'tic Gum, Gum Elastic, Gummi elas'ticum, Cauchuc, Resi'na elas'tica seu Cayennen'sis, Cayenne Resin, Cautchuc, (F.) Gomme elastique, Resine elastique ou de Cayenne. A substance formed from the milky juice of Hae'vea seu Hevea Guianen'sis, Jat'ropha elas'tica, Sipho'nia Cahuchu, S. elas'tica, Seringue Tree, and of Fious Indica, and Artocar'pus integrifo'lia :-South American trees. It is insoluble in water and alcohol; but boiling water softens and swells it. It is soluble in the essential oils and in ether, when it may be blown into bladders. It is used in the fabrication of catheters, bougies, pessaries, &c.

India-rubber or gum elastic: much used in dentistry and surgery.

India rubber. The prepared milky juice of Hevea brasiliensis and probably of other species of Hevea.

n. [South American] India-rubber;—an elastic substance, obtained from the milky juice or tropical tree.