Definition of expeditionary
: of, relating to, or being an expedition; also : sent on military service abroad an expeditionary force
Recent Examples of expeditionary from the Web
The hipsters, the artists, the writers and the start-up entrepreneurs started arriving a few years ago, a sort of flat white expeditionary force.
Take the ground-renewable expeditionary-energy system, or Greens, for example.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'expeditionary'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of expeditionary
EXPEDITIONARY Defined for English Language Learners
Definition of expeditionary for English Language Learners
: relating to an expedition
: sent to fight in a foreign country
Seen and Heard
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