a. a person who holds the degree of Bachelor of Arts, Bachelor of Education, Bachelor of Science, etc
b. the degree itself
3.
Also called: bachelor-at-arms (in the Middle Ages) a young knight serving a great noble
4.
bachelor seal a young male seal, esp a fur seal, that has not yet mated
[C13: from Old French bacheler youth, squire, from Vulgar Latin baccalāris (unattested) farm worker, of Celtic origin; compare Irish Gaelic bachlach peasant]