-id

1. A state of sensitivity of the skin in which a part remote from the primary lesion reacts (“-id reaction”) to substances of the pathogen, giving rise to a secondary inflammatory lesion; the lesion manifesting the reaction is designated by the use of -id as a suffix. [G. -eides, resembling, through Fr. -ide] 2. Small, young specimen. [G. -idion, a diminutive ending]

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suffix denoting

relationship or resemblance to. Example: spermatid (a stage of sperm formation).

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[Gr. eidos form, shape] a word termination denoting (1) having the shape of, or resembling or (2) an id reaction associated with the disorder specified by the root word.