Dendron see dendrite

dendrophagous a. [Gr. dendron, tree; phagein, to eat] Feeding on woody tissues.

dendrophilous a. [Gr. dendron, tree; philein, to love] Living in woody tissue, or on trees.

denematize a. [L. de, away from; Gr. nematos, of thread] To divest of nematodes.

denizen n. [OF. denzein, one living within] Any animal that has become naturalized.

dens n.; pl. dentes [L. dens, tooth] 1. A tooth or tooth-like process. 2. (ARTHRO: Insecta) a. In Collembola, the proximal segment of the furcula (springing fork). b. Dentes= teeth or other pointed structures on the inner side of the mandible.

densariae n.pl. [L. dens, tooth] (ARTHRO: Insecta) Distinct thickenings of the margins of the incisurae of scale insects.

density-dependent factors Factors (direct or inverse) whose effects on a population are dependent upon the density of that particular population.

density-independent factors Factors whose effects on a population are not dependent upon the density of that particular population.

dentacerores n.pl. [L. dens, tooth; cera, wax; os, mouth] (ARTHRO: Insecta) In coccoids, irregularities in the membrane surrounding the anus; denticulate pores.

dental plates (BRACHIO) Plates of secondary shell supporting the hinge teeth on the ventral valve.

dental sclerite (ARTHRO: Insecta) The sclerite at each side of the base of the mandibular sclerite of muscid larvae.

dental sockets (BRACHIO) Excavations in the posterior margin of the brachial valve for reception of hinge teeth.

dentate a. [L. dens, tooth] Toothed, or with tooth-like processes.

dentatelirate a. [L. dens, tooth; lira, furrow] Having teeth and fine raised lines or grooves.

dentate-serrate Teeth with serrated dentations on the edges.

dentate-sinuate Teeth with a wavy indented margin.

denticles n.pl. [L. denticulus, little tooth] 1. Small, tooth-like projections. 2. (ARTHRO: Crustacea) In cirripeds, toothlet on the sutural edge of the radius of the compartment plate, or opposed buttress of adjoining plate. 3. (ANN: Poly-chaeta) The paragnaths. denticulate a.

dentigerous ridges Elevations bearing small teeth or toothlike projections.

dentition n. [L. dens, tooth] 1. All teeth including different forms, sizes, etc. 2. (MOLL: Bivalvia) A collective term including hinge teeth and sockets.

denuded a. [L. de, away from; nudus, bare] Divested of all covering.

depauperate a. [L. de, away from; pauper, poor] 1. Impoverishing or exhausting. 2. Falling short of the natural size or development from being impoverished or starved. 3. (ARTHRO: Insecta) An impoverished or dying ant colony.

deportation n. [L. de, away from; portare, to carry] (ARTHRO: Insecta) In social insects, the transport of adults or young to a new nest.

depressed a. [L. de, away from; pressus, bear down] 1. Pressed or kept down; sunken below the general surface. 2. (MOLL: Gastropoda) Refers to a shell low in proportion to diameter.

depressor n. [L. de, away from; pressus, bear down] Any muscle that lowers or depresses any appendage.

depressor ani (nemata) An H-shaped muscle that dilates the rectum and elevates the posterior lip of the anus.

depressor muscle crests (ARTHRO: Crustacea) In balano-morph barnacles, elevated denticles or ridges on the inner surface of the tergum near the basicarinal angle for attachment of the depressor muscles.

depuration n. [L. de, away from; puratus, cleanse] The act of cleansing; free from impurities.

derived character Any character that differs materially from the ancestral condition.

derma, dermis n. [Gr. derma, skin] 1. The layer of the cuticle, laminated in structure, beneath the epidermis. 2. (PORIF) The extreme outer surface layer of membrane or reinforcement by spicules and/or sand. dermal a.

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