Diagnose

v. examine and identify a disease from its symptoms, draw conclusions from a diagnostic exam

In general, diagnosis (plural diagnoses) has two distinct dictionary definitions. The first definition is "the recognition of a disease or condition by its outward signs and symptoms", while the second definition is "the analysis of the underlying physiological/biochemical cause(s) of a disease or condition".
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Verb
1. determine or distinguish the nature of a problem or an illness through a diagnostic analysis
(synonym) name
(hypernym) analyze, analyse, study, examine, canvass, canvas
(hyponym) explore
(derivation) diagnosis, diagnosing
2. subject to a medical analysis
(hypernym) analyze, analyse, study, examine, canvass, canvas
(hyponym) explore
(derivation) diagnosis, diagnosing
(classification) medicine, practice of medicine

n. diagnosis, medical opinion, process of identifying a disease from its symptoms, judgement, assessment, opinion

n. diagnosis, process of identifying a disease from its symptoms, conclusion following a diagnostic exam