obtuse
Stedman's Medical Dictionary: A Practical Medical Dictionary · 1920 · p. 24
(ob-tus') [L. obtusus; obtundere, to blimt.] 1. Dull in intellect, of slow understanding. 2. Blunt, not acute.
Bu kavram başka kaynaklarda da geçiyor
Chamber's Twientieth Century Dictionary (1908)
Explanation of Terms Used in Entomology (1906)
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