(uncountable) The scientific study of plants, a branch of biology. Typically those disciplines that involve the whole plant. / The plant life of a geographical area; flora.

(nautical) The process of swinging and compensating a ship or aircraft compass by determining and reducing the deviation coefficients and recording the residual deviations; now done by computer.

(psychology, of an activity, process, person or personality) Containing its own meaning or purpose; deriving meaning and purpose from within.

plural of beadboard