unpredictably difficult in operation; likely to be troublesome; "rockets were much too fractious to be tested near thickly populated areas"; "fractious components of a communication system"
stubbornly resistant to authority or control; "a fractious animal that would not submit to the harness"; "a refractory child"
(usually followed by `to') strongly opposed; "antipathetic to new ideas"; "averse to taking risks"; "loath to go on such short notice"; "clearly indisposed to grant their request"
trade name of a company that produces musical recordings; "the artists and repertoire department of a recording label is responsible for finding new talent"
a brief description given for purposes of identification; "the label Modern is applied to many different kinds of architecture"
an identifying or descriptive marker that is attached to an object
a radioactive isotope that is used in a compound in order to trace the mechanism of a chemical reaction
distinguish (an element or atom) by using a radioactive isotope or an isotope of unusual mass for tracing through chemical reactions
distinguish (as a compound or molecule) by introducing a labeled atom
assign a label to; designate with a label; "These students were labelled `learning disabled'"