I feel like I asked this question a long time ago, but I can't find it in the archives, so I'll ask again. The Indian fruit called nimbu in Hindi, and both lime and lemon in English, is really neither like a lime nor a lemon, although it's similar to both. It's almost spherical, and pale yellow and green in varying proportions. It tastes a little more like a lemon than like a lime, but there are other flavors in there that are harder to pin down. If you've had a mousambi (or mosammi or whatever), it's like that, but on the other hand, if you've had a mousambi you've probably also had an Indian lime. According to some web page I found, these are also called Indian sweet and Palestine sweet, and their botanical name is citrus limettioides. There's a drink that's omnipresent in India called lime soda, which is just made by squeezing one lime into a glass and filling it with soda water, and optionally adding sugar or salt. I haven't had one in a year and a half, and I miss them. Anyway, is there anywhere where you can buy these around here? Or extract, or something?