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hy·po·der·mic im·plan·ta·tion(hī'pō-dĕr'mik im'plan-tā'shŭn)
Installation of a device, usually metallic or plastic, which delivers dosage of a medication over a long duration.
The introduction of an implant under the skin; usually a solid substance placed by forcing a small amount out of a hypodermic needle.
See also: implantation