Whisky made only from the malted barley of a single distillery, unblended with other whiskies.

(mathematics) Any function in which each point in the domain maps to just one point in the range

A nuclear family with only one parent.

(sports) A tournament where the loser of a game or match is eliminated from further competition.

plural of single-parent family

(astronomy) A star system consisting of a solitary star not gravitationally bound to other stars

plural of single star system

(roofing) Roofing membranes that are field applied using just one layer of membrane material (either homogeneous or composite rather than multiple layers.

(roofing) A roof system in which the principal roof covering is a single layer of flexible membrane often thermoset or thermoplastic.

(radio) A modification of amplitude modulation that modulates the output signal on a single sideband only, as opposed to both sidebands.