The practice of grouping together all experimental units (such as plots of ground or animals) that make up a replication in an agricultural experiment.

Undesired adhesion of granular particles; often occurs with damp powders or plastic pellets in storage bins or during movement through conduits.

Combining two or more computer records into one block.

1. Applying a high negative bias to the grid of an electron tube to reduce its anode current to zero.

2. Overloading a receiver by an unwanted signal so that the automatic gain control reduces the response to a desired signal.

3. Distortion occurring in a resistance-capacitance-coupled electron tube amplifier stage when grid current flows in the following tube.

Undesired adhesion between layers of plastic materials in contact during storage or use.

1. The process of embedding tissue in a solid medium, such as paraffin.

2. A histochemical process in which a portion of a molecule is treated to prevent it from reacting with some other agent.

1. A preliminary hot-forging operation which imparts an approximate shape to the rough stock.

2. Reducing the oxygen content of the bath in an open-hearth furnace.

Large-scale obstruction of the normalwest-to-east progress of migratory cyclones and anticyclones.

See <<blinding>>

A sudden obstruction or interruption in spontaneous flow of thinking or speaking, perceived as an absence or deprivation of thought.

The hindering of motion of dislocations in a solid substance by small particles of a second substance included in the solid; results in hardening of the substance.

The grouping of sample data into subgroups with similar characteristics.