acidophilic

[ uh-sid-uh-fil-ik, as-i-duh- ]

/ əˌsɪd əˈfɪl ɪk, ˌæs ɪ də- /

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adjective

Biology. having an affinity for acid stains; eosinophilic.

Ecology. thriving in or requiring an acid environment.

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Also ac·i·doph·i·lous

[as-i-dof-uh-luhs], /ˌæs ɪˈdɒf ə ləs/, oxyphilic.

Origin of acidophilic

First recorded in 1895–1900; acidophil + -ic

Certain structures take up only acid dyes, and are called acidophilic, oxyphilic, or eosinophilic.
A Manual of Clinical Diagnosis|James Campbell Todd