Dictionary.com
Thesaurus.com

vax

American  
[vaks] / væks /

noun

plural

vaxes, vaxxes
  1. a vaccine or vaccination.

    I never got my scheduled measles vax in the 1960s because I contracted the measles first.


verb (used with object)

vaxed, vaxxed
  1. to vaccinate.

    Our hospital policy is that staff must be vaxxed by December 15.

Etymology

Origin of vax

By shortening and alteration

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Vaxcyte’s experimental vaccine, VAX-31, is advancing to phase 3 trials in adults and phase 2 trials in infants, targeting an $8 billion market.

From Barron's

Vaxcyte is advancing to phase 3 trials for its shot, VAX-31, in adults and phase 2 trials for infants.

From Barron's

Imperfect trial results for its a pneumococcal conjugate vaccine, VAX-24, in infants sent the stock spiraling by 46% on March 31 alone.

From Barron's

Vaxcyte is expected to initiate all adult VAX-31 phase 3 studies in 2026 and deliver a readout on the first of those trials by the end of the year.

From Barron's

Mizuho has maintained a $163 price target for Vaxcyte stock since September 2024, shortly after the company said the immune response from VAX-31 was as good or better than the response elicited by Prevnar 20 across all strains of the streptococcus bacteria.

From Barron's