Definition of "mule-jenny" [mule•-jen•ny]

• See mule, 4. (noun)

Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)

• "And what need to cram one's self till the age of twenty with all sorts of knowledge, then to fasten the threads of a mule-jenny or pick coal at the bottom of a pit?"
• "To properly exploit the mule-jenny, engineers, builders, clerks, brigades of workingmen and workingwomen of all sorts, have been needed."