germane -
relevant and appropriate; "he asks questions that are germane and central to the issue"
relevant having a bearing on or connection with the subject at issue; "the scientist corresponds with colleagues in order to learn about matters relevant to her own research"
germane -
Related to the topic being discussed or considered.
Wikipedia
Germane is the chemical compound with the formula GeH4, and the germanium analogue of methane. It is the simplest germanium hydride and one of the most useful compounds of germanium. Like the related compounds silane and methane, germane is tetrahedral.
OmegaWiki Dictionary
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germane Related to the topic being discussed or considered.