endoplasm

n. the relatively less dense cytoplasm that fills the bulk of a cell, away from the periphery and excluding the nucleus. Compare ectoplasm. —endoplasmic adj.

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Psychology term of the day

May 9th 2024

slow-wave sleep

deep sleep that is characterized by increasing percentages of particular types of delta waves on the electroencephalogram, corresponding to Stages 3 and 4 of NREM sleep. See also sleep stages.