Usage Note
Tcnq (tetracyanoquinodimethane) is a technical acronym used in chemistry and materials science for an organic electron-acceptor molecule. It appears in Spanish scientific texts exactly as in English. Learners will only encounter it in specialist or academic contexts; it has no everyday usage and no Spanish inflection.
Examples
"El tcnq se usa en semiconductores orgánicos."
Natural Translation
TCNQ is used in organic semiconductors.

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