| duction | 1. The act of leading, bringing, conducting. 2. In ophthalmology, ocular rotations with reference to one eye; usually additionally designating direction of movement of the eye; e.g., rotation toward the nose, adduction; toward the temple, abduction; upward, supra-or sursumduction; downward, deorsumduction; of the upper pole of one cornea, cycloduction; of the upper pole of one cornea outward, excycloduction; of the upper pole of one cornea inward, incycloduction. Origin: L. Duco, to lead (05 Mar 2000) |
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| passive duction | A manoeuver to determine whether a mechanical obstruction is present in the eye; with forceps grasping an eye muscle, an attempt is made to passively move the eyeball in the direction of restricted rotation. Synonym: passive duction. (05 Mar 2000) |
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| sex duction | f duction Previous: sex differentiation disorders, sexdigitate, sex disorders, sex distributionNext: sex duction, sexed, sex education, sex factor, sex factors, sex hormonesex duction <molecular biology> The transfer of genes from one bacterium to another by the process of conjugation. May involve one bacterium with an F' plasmid, in which case the process is called f duction. (14 Oct 1997) |
| F duction | Transfer of chromosomal fragments from one bacterium to another by means of F' carriers. Synonym: sexduction. (05 Mar 2000) |
| forced duction | A manoeuver to determine whether a mechanical obstruction is present in the eye; with forceps grasping an eye muscle, an attempt is made to passively move the eyeball in the direction of restricted rotation. Synonym: passive duction. (05 Mar 2000) |