| arachnid vectors | Members of the class arachnida, especially spiders, scorpions, mites, and ticks, which transmit infective organisms from one host to another or from an inanimate reservoir to an animate host. (12 Dec 1998) |
|---|---|
| arthropod vectors | Arthropods, other than insects and arachnids, which transmit infective organisms from one host to another or from an inanimate reservoir to an animate host. Arachnid vectors and insect vectors are also available. (12 Dec 1998) |
| genetic vectors | Plasmids, bacteriophages, or viruses used during recombinant DNA techniques that transport foreign genes into recipient cells. Genetic vectors possess a functional replicator site and contain a genetic marker to facilitate their selective recognition. (12 Dec 1998) |
| disease vectors | Invertebrates or non-human vertebrates which transmit infective organisms from one host to another. For human vectors the preferred term is carrier state. (12 Dec 1998) |
| yeast vectors | <molecular biology> Yeast cells that contain genes. (11 May 1997) |
| genes, insect | The hereditary material of insects. (12 Dec 1998) |
| genes, structural, insect | DNA sequences that code for RNA and for proteins required for the enzymatic and structural function of insect cells. (12 Dec 1998) |
| sterile insect technique | A technique used to control or eradicate insect pests or vectors, utilizing induction by irradiation of dominant lethality in the chromosomes of the released insects. (05 Mar 2000) |
| stings, insect | Stings from large stinging insects such as yellow jackets, bees, hornets and wasps can trigger allergic reactions varying greatly in severity. Avoidance and prompt treatment are essential. In selected cases, allergy injection therapy is highly effective. (the three a's of insect allergy are adrenaline, avoidance and allergist.) (12 Dec 1998) |
| insect | 1. <zoology> One of the Insecta; especially, one of the Hexapoda. See Insecta. The hexapod insects pass through three stages during their growth, viz, the larva, pupa, and imago or adult, but in some of the orders the larva differs little from the imago, except in lacking wings, and the active pupa is very much like the larva, except in having rudiments of wings. In the higher orders, the larva is usually a grub, maggot, or caterpillar, totally unlike the adult, while the pupa is very different from both larva and imago and is inactive, taking no food. 2. <zoology> Any air-breathing arthropod, as a spider or scorpion. 3. <zoology> Any small crustacean. In a wider sense, the word is often loosely applied to various small invertebrates. 4. Any small, trivial, or contemptible person or thing. Insect powder,a powder used for the extermination of insects; especially, the powdered flowers of certain species of Pyrethrum, a genus now merged in Chrysanthemum. Synonym: Persian powder. Origin: F.insecte, L. Insectum, fr. Insectus, p.p. Of insecare to cut in. See Section. The name was originally given to certain small animals, whose bodies appear cut in, or almost divided. Cf. Entomology. Source: Websters Dictionary (01 Mar 1998) |
| insect bites and stings | Bites and stings inflicted by insects. (12 Dec 1998) |
| insect control | The reduction or regulation of the population of noxious, destructive, or dangerous insects through chemical, biological, or other means. (12 Dec 1998) |
| insect defensins | <biochemistry> Family of small (30-35 residue) cysteine rich cationic proteins found in vertebrate phagocytes (notably the azurophil granules of neutrophils) and active against bacteria, fungi and enveloped viruses. May constitute up to 5% of the total protein. Insect defensins have some sequence homology with the vertebrate forms. (18 Nov 1997) |
| insect hormones | Hormones secreted by insects. They influence their growth and development. Also synthetic substances that act like insect hormones. (12 Dec 1998) |
| insect proteins | Proteins found in any species of insect. (12 Dec 1998) |