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  2. /ocul
  3. /inoculate

inoculate

UK/i'nɒkjuleit/US
GREC2

Definitions

v.

To introduce a vaccine or pathogen into a person or animal to produce immunity to a disease

给…接种(疫苗);使免疫

v.

To instil an attitude, idea, or feeling into someone's mind

灌输(思想、态度等)

v.

To introduce microorganisms into a culture medium (in lab work)

(在培养基中)接种微生物

Root Breakdown

Root-derived
in-not, opposite of
+
oculeye
+
-ateto make, having
=inoculate

in- (in) + ocul (here oculus = a plant's 'eye,' i.e. a bud) + -ate (verb) = 'to set a bud into.' The word began in gardening: grafting a bud into a stem so it grows. Physicians borrowed the image — implanting a tiny bit of disease into the body to build immunity is like setting a bud into a branch. Hence vaccination, and figuratively 'planting' ideas into someone.

Root ocul still carries 4 more words

Why It Means This

The surprise is in the root: oculus here isn't a human eye but a plant's 'eye' — a bud. Renaissance gardeners 'inoculated' a tree by grafting a bud into it. Doctors then borrowed the word for implanting disease-matter to build immunity, and from there it spread to 'inoculating' someone with beliefs. Same picture every time: setting something small into a living thing so it takes root.

Usage Guide

- inoculate someone against X: the disease guarded against (inoculate children against polio).

- inoculate someone with X: the substance or, figuratively, the idea instilled (inoculate with a vaccine / with skepticism).

Note the spelling: one n, two only in 'innocuous' (unrelated). A very common misspelling is 'innoculate' — wrong.

Example Sentences

  • 1.

    Health workers traveled to remote villages to inoculate children against measles.

  • 2.

    Millions were inoculated before the flu season began.

  • 3.

    His grandmother had inoculated him with a deep distrust of politicians.

  • 4.

    In the lab, we inoculate the broth with a single bacterial colony.

Word Forms

Verb

Pastinoculated
3rd Personinoculates
Past Part.inoculated
Pres. Part.inoculating

Derivatives

inoculation
← Back to ocul