|a crystalline insoluble substance, consisting of a chlorinated derivative of naphthalene: a contact insecticide the use of which is now restricted as it accumulates in the tissues of animals. Formula: C12H8OCl6|
|[C20: from |
|a fool or simpleton; ninny.|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
dieldrin di·el·drin (dī-ěl'drĭn, dēl'-)
A chlorinated hydrocarbon used as an insecticide and in mothproofing.
|dieldrin (dēl'drĭn) Pronunciation Key
A light tan, toxic, carcinogenic compound used as an insecticide on fruit, soil, and seed, and in controlling tsetse flies and other carriers of tropical diseases. Chemical formula: C12H8Cl6O.