D defs.my
Entry 4 senses Webster, 1913

Inoculation

/ĭnˌ-äkˌ-yəl-āsh'-ən/ · In·oc·u·la·tion · IPA /ɪˌnɑkjəˈleɪʃən/
01 n. The act or art of inoculating trees or plants.
  1. 1.
    The act or art of inoculating trees or plants.
  2. 2.
    The act or practice of communicating a disease to a person in health, by inserting contagious matter in his skin or flesh, usually for the purpose of inducing immunity to the disease.(Med.)
  3. 3.
    Fig.: The communication of principles, especially false principles, to the mind.
  4. 4.
    The introduction of microorganisms into a growth medium, to cause the growth and multiplication of the microorganisms.(Microbiology)