spotter
n.— «Cal Fire blamed the delay on a shortage of military helicopter managers, better known as spotters—trained wild-land firefighters who help military pilots position water drops and communicate with firefighters in the air and on the ground.» —“ Grounded military helicopters blamed on lack of ‘spotters’” by Tony Manolatos Union-Tribune (San Diego, California) Nov. 3, 2007. (source: Double-Tongued Dictionary)
Further reading
Why is it harder to talk if we don’t move our hands? Even when we’re talking on the phone we feel the need to gesture to aid communication. A new book offers a look at the relatively new field of gesture studies. And: Ever wonder why we describe the...
A retronym is a word coined to distinguish something new from an older, more generic version, such as electric guitar or clock radio. A couple of new retronyms are fine water, or “unprocessed water that reflects a region’s terroir” and water...