(anatomy) An embryonic anatomical structure which connects the initial area of development of the thyroid gland to its final position

Alternative spelling of dual-boot

(computing) Having two operating systems available, such that either of them can be selected each time the computer is booted.

(computing) The recorded state of the memory of a computer program at a specific time, generally when the program has terminated abnormally.

Alternative spelling of knuckle duster

capable of operating on two frequency ranges

A warm, hooded coat, made from duffel, fastened with toggles.

plural of duck stamp

(US) An adhesive stamp sold by the US Federal and various state governments as proof of payment for a duck-hunting licence, with the proceeds used for conservation programs.

plural of tour of duty