the act of participating in an athletic competition involving running on a track | (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids |
any road or path affording passage especially a rough one | (genetics) an organism that is the offspring of genetically dissimilar parents or stock; especially offspring produced by breeding plants or animals of different varieties or breeds or species |
a bar or pair of parallel bars of rolled steel making the railway along which railroad cars or other vehicles can roll | a wooden structure consisting of an upright post with a transverse piece |
a pair of parallel rails providing a runway for wheels | a marking that consists of lines that cross each other |
a groove on a phonograph recording | any affliction that causes great suffering |
(computer science) one of the circular magnetic paths on a magnetic disk that serve as a guide for writing and reading data | |
a course over which races are run | |
an endless metal belt on which tracked vehicles move over the ground | |
evidence pointing to a possible solution | |
a distinct selection of music from a recording or a compact disc | |
a line or route along which something travels or moves | |