Having a strong affinity for or preference for both acidic and basic substances or conditions equally.
From 'ampho-' (both) plus '-philous' (loving). An alternative adjectival form emphasizing the preference and attraction properties equally.
While 'amphophilic' focuses on the staining, 'amphophilous' emphasizes the actual chemical preference—these organisms and molecules genuinely prefer the middle ground like some biological Switzerland.
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