D defs.my
Entry 3 senses Webster, 1913

Punctual

/pŭng'-kcho͞o-əl/ · Punc·tu·al · IPA /ˈpʌŋkt͡ʃuəl/
01 a. Consisting in a point; limited to a point; unextended.
  1. 1.
    Consisting in a point; limited to a point; unextended.[R.]
    “The theory of the punctual existence of the soul.” — Krauth.
  2. 2.
    Observant of nice points; punctilious; precise.
    Punctual to tediousness in all that he relates.” Bp. Burnet.
    “So much on punctual niceties they stand.” — C. Pitt.
  3. 3.
    Appearing or done at, or adhering exactly to, a regular or an appointed time; precise; prompt; as, a punctual man; a punctual payment.
    “These sharp strokes [of a pendulum], with their inexorably steady intersections, so agree with our successive thoughts that they seem like the punctual stops counting off our very souls into the past.” — J. Martineau.