Definition of substitution
substitutionalplay \-shnəl, -shə-nəl\ adjective
substitutionaryplay \-shə-ˌner-ē\ adjective
Examples of substitution in a Sentence
The coach made three substitutions in the second half of the game.
I'd prefer rice with my steak instead of potatoes, but the menu says “no substitutions.”
Substitution of applesauce for oil is one way of reducing the fat in recipes.
The cookbook has a long list of substitutions for ingredients that may be hard to find.
Recent Examples of substitution from the Web
The old ailing ribbons of English boxwood and later substitutions of Japanese holly have been replaced with an improved variety of Japanese box named Green Beauty -- 3,000 in all.
Authorities have set a goal of destroying 100,000 hectares of coca crops this year through a combination of manual eradication and voluntary crop substitution agreements with farmers.
A similar substitution has helped lower emissions in the United States.
This substitution, though, has not always occurred as a linear progression.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'substitution'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of substitution
Middle English substitucion, from Middle French, from Late Latin substitution-, substitutio, from substituere
First Known Use: 14th century
SUBSTITUTION Defined for English Language Learners
Definition of substitution for English Language Learners
: the act of substituting or replacing one person or thing with another
: someone or something that is or can be substituted for another
SUBSTITUTION Defined for Kids
Definition of substitution for Students
: the act or process of putting in or taking the place of another
Medical Definition of substitution
1: a chemical reaction in which one or more atoms or groups in a molecule are replaced by equivalent atoms or groups to form at least two products; especially : the replacement of hydrogen in an organic compound by another element or group
2a: the turning from an obstructed desire to another desire whose gratification is socially acceptableb: the turning from an obstructed form of behavior to a different and often more primitive expression of the same tendency a substitution neurosisc: the reacting to each of a set of stimuli by a response prescribed in a key a substitution test for speed of learning new responses
Legal Definition of substitution
: the substituting of one person or thing for another: as a in the civil law of Louisiana : a disposition not in trust by which a donee, heir, or legatee is charged to hold property transferred and return it to a third person — compare fidei commissum, vulgar substitution Editor's note: Substitutions are prohibited. b : replacement of a party to an action with a successor or representative upon motion to the court when the party is unable to continue litigating (as because of death, incompetency, transfer of interest, or loss of the office for which the party was suing or being sued in an official capacity) c : the replacement of a new agreement or obligation for an old one — see also novation
substitutional\-shə-nəl\ play adjective
substitutionary\-shə-ˌner-ē\ play adjective
Seen and Heard
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