1) Autoinjector 2) Needle 3) Subcutaneous 4) Syringe 1) Body covering 2) Connective tissue 3) Energizing 4) Like a flu shot 5) Stimulating 6) Subcutaneous 
• (a.) Of or pertaining to the parts under the skin.
(hypo- + Gr. derma skin) applied or administered beneath the skin.
<pharmacology> Applied or administered beneath the skin. ... Origin: Gr. Derma = skin ... (18 Nov 1997) ... 
(hi″po-dur´mik) beneath the skin; called also subcutaneous. hypodermic syringe. subcutaneous injection.
Hyp`o·der'mic adjective [ See Hypoderma .] Of or pertaining to the parts under the skin. Hypodermic medication , the application of remedies under the epidermis, usually by means of a small syringe, called the hypodermic syringe. -- Hyp`o*der'mic*al*ly 
Type: Term Pronunciation: hī′pō-der′mik Synonyms: subcutaneous, hypodermic injection, hypodermic syringe
The term hypodermic refers to something that introduces a substance under the skin, such as a hypodermic syringe that is used to inject a substance, or withdraw a substance from, under the skin.
[adj] - relating to or located below the epidermis
subcutaneous adjective relating to or located below the epidermis; `hypodermic needle`; `subcutaneous implant`
characterized by the introduction of medicine or drugs under the skin: hypodermic injection. · introduced under the skin: a hypodermic medication. · pertaining to parts under the skin. · stimulating; energizing.
relating to or located below the epidermis