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Exe(ĕks), river, c.55 mi (90 km) long, rising in the Exmoor, Somerset, SW England, and flowing S across the Cornwall peninsula, past Exeter to the English Channel at Exmouth. Salmon and shellfish are taken from the river; many waterfowl are found along its narrow estuary.
/eks'ee/ or /eek'see/ or /E-X-E/ An executable binary file. Some operating systems (notably MS-DOS, VMS, and TWENEX) use the extension .EXE to mark such files. This usage is also occasionally found among Unix programmers even though Unix executables don't have any required suffix.