mi·cro·naut [‘maɪ.kroʊ.nɔt], n, -pl. -nauts 1. a person who works for Micron Technology, Inc. esp. in Boise, ID where the term applies to a large portion of the local population. 2. an incredibly awesome person who, with the help of other micronauts, is capable of performing tasks indistinguishable from miracles. 3. a somewhat deprecating term for the hordes of Boise imports that are responsible for 90% of rush hour traffic. 4. see sugar daddy.