isopleth /īˈsō-pleth/

1. An isogram, esp one on a graph showing variations of a climatic element as a function of two variables
2. Cf nomogram

• third ways
• third wheel
• Third World
• Third-Worlder
• Third-Worldism
• thirl
• thirlage
• thirlages
• thirled
• thirling
• thirls
• thirst
• thirsted
• thirster
• thirsters
• thirstful
• thirstier
• thirstiest
• thirstily
• thirstiness
• thirstinesses
• thirsting
• thirstless
• thirsts
• thirsty