1. (psychoanalysis) the governing principle of the id; the principle that an infant seeks gratification and fails to distinguish fantasy from reality
   - pleasure principle, pleasure-pain principle

Type of: principle

• tachina fly
• Tachinidae
• tachistoscope
• tachogram
• tachograph
• tachometer
• tachycardia
• Tachyglossidae
• Tachyglossus
• tachygraphy
• tachylite
• tachymeter
• tachyon
• tachyphylaxis
• Tachypleus
• tachypnea
• tacit
• tacit consent
• tacitly
• taciturn
• taciturnity
• taciturnly
• Tacitus
• tack
• tack hammer