Principal parts

/pɹˈɪnsɪpəl pˈɑːts/

/pɹˈɪnsɪpəl pˈɑːɹts/

Principal parts

(grammar) the basic verb forms from which other forms, such as the infinitive, past tense or past participle, are deduced

Examples

1. This set-up has two principal parts: The cell that’s sending the signal is the presynaptic neuron, and it transmits through a knoblike structure called the presynaptic terminal, usually the axon terminal.