(rail transport) Usually of a freight train, having all brakes connected to the brake pipe running throughout the train, thus being under the control of the train driver.

A quantitative metric that measures how well a particular mask or respirator fits to a specific individual's face, defined as the ratio of the ambient concentration of aerosol particles to the concentration within the facepiece during use.

A hydraulic fitting consisting of a perforated hollow bolt, or internally relieved bolt, and a spherical union for fluid transfer.

plural of banjo fitting

(of a garment) Designed to be worn with comfort by people with a wide range of sizes. / (figuratively, often derogatory) Suitable for a wide range of tastes, opinions, situations, etc.

(mathematics) A line on a scatter plot that best defines or expresses the trend shown in the plotted points. It is chosen so that the sum of the squares of the distances from the points to the line is a minimum. It also illustrates the correlation (positive, negative, or zero correlation) between the plotted variables.

(simile) To be a perfect fit, to be exactly the right size.

(chiefly Britain) Very fit; in good shape.

(simile, Australia) In good physical health.

(Australia) a health indicator age in comparison to a person's true age, based on a survey of diet, exercise, and other factors.