Edoeagus see aedeagus

effector a. [L. efficere, to execute] A structure specialized for the activation of a particular form of response, i.e., movement or secretion.

efferent a. [L. ex, out of; ferre, to carry] Conducting or carried outward; discharging. see afferent.

efferent channels (ARTHRO: Crustacea) Passageways through which water moves away from gills and out of the branchial region.

efferent nerve A nerve that conducts from a nerve center toward the periphery; the axon of a motor neuron that conducts impulses to the effectors.

effete a. [L. effetus, exhausted] No longer capable of fertility; barren.

effluvium n.; pl. -via [L. ex, out of; fluere, to flow] A noxious smell or invisible emanation.

effuse a. [L. ex, out of; fluere, to flow] (MOLL: Gastropoda) Pertaining to the condition of the shell aperture when the margin is interrupted by a short spout for a siphonal outlet.

eflected a. [L. ex, out of; flectere, to bend] Bent outward somewhat angularly.

egest v.t. [L. egestus, discharged] To eliminate solid material from a cell or from the enteron.

egesta n.pl. [L. egestus, discharged] The total amount of substances and fluids discharged from the body.

egg-burster (ARTHRO: Insecta) Various cuticular structures that aid in hatching by rupturing the egg membranes; egg tooth; hatching spine; ruptor ovi; hatching tooth.

egg-calyx (ARTHRO: Insecta) The dilation of the oviduct at the opening of the ovarian tubes.

egg-cap A cap, or operculum joined to the body of an egg along a line of weakness that facilitates hatching.

egg-case The case or covering of an egg or egg-mass.

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