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Bacchus in Greek and Roman mythology, the god of wine and merrymaking; Dionysus.
bach (informal) to live and take care of oneself alone, as a bachelor does.
bachelor an unwed man, esp. one who has never married. [2 definitions]
Bachelor of Arts an undergraduate degree conferred on a person who has completed a curriculum in the liberal arts. (abbr.: B.A.)
Bachelor of Science an undergraduate degree conferred on a person who has completed a curriculum in science, technology, or the like. (abbr.: B.S.)
bachelor's-button any of several plants with long stalks and round flowers resembling buttons, such as the cornflower and some daisies.
bachelor's degree a degree that you get after finishing a program of studies at a college or university.
bach it to take care of the house oneself.
bacillary rod-shaped. [2 definitions]
bacillus any rod-shaped bacterium that is active only in the presence of oxygen, or one composed of a chain of rod-shaped elements. [2 definitions]
bacitracin an antibiotic that is used externally in the treatment of skin infections.
back the part of a human or other vertebrate that is on the opposite side from the chest and abdomen and between the neck and the tailbone. [15 definitions]
backache a pain in the back, esp. a persistent one in the lower back.
back and forth moving backward then forward, or forward then backward, often repeatedly. [2 definitions]
backbeat a primary accent on the second and fourth beats of a four-beat measure, common in popular music; secondary beat.
backbencher a junior legislator, esp. in Great Britain's House of Commons, who is not one of his or her party's leaders.
backbite to criticize harshly or speak badly of (an absent person).
backboard a board at the rear of something, serving as a support. [2 definitions]
backbone the series of bones that run along the center of the back; spinal column; vertebrae. [3 definitions]
backbreaking requiring exceptional physical effort; exhausting.
back burner a state of temporary low priority (usu. prec. by "on the").