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n. interventions that aim to improve the outcome of a genetic disease by altering the environment to minimize expression of the disease. For example, people with phenylketonuria can reduce or prevent its expression by eliminating major sources of phenylalanine (e.g., soft drinks sweetened with aspartame) from their diet.

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Psychology term of the day

March 3rd 2024

closed-class words

closed-class words

in a language, a category of words that does not readily admit new members, consisting mainly of words that serve key grammatical functions, such as pronouns, prepositions, and determiners (see function word). Compare open-class words.