splitter
n.— «Schaffler estimates that Armstrong has helped as many as 600 patients. Armstrong is what’s known as a splitter, meaning each time he donates his platelets can serve up to three people.» —“Platelet donor gives gift of life” by Suzanne Labarre Newsday June 26, 2007. (source: Double-Tongued Dictionary)
Further reading
The edge of the Grand Canyon. A remote mountaintop. A medieval cathedral. Some places are so mystical you feel like you’re close to another dimension of space and time. There’s a term for such locales: thin places. And: did you ever go...
What do you call a long sandwich filled with lots of ingredients? Whether you call it a sub, a hoagie, a grinder, or something else entirely depends on where you’re from. And: Martha’s visit to an Alaskan reindeer ranch reveals why you...