English: Gutta-percha.
Name: Malay, getah perca, translates as "percha sap".
Botany: tropical trees; Southeast Asia and northern Australasia.
Use: inelastic natural latex, gutta-percha; insulation for underwater telegraph cables; dentistry, root canal filling.
Content: latex, polyterpene, a polymer of isoprene, or polyisoprene, trans-1, 4-polyisoprene.