SEMANTIC APHASIA By N., Pam M.S. - April 13, 2013 a form of aphasia where a person cannot understand a word but is able to say it. Also see logic grammatical disorder. SEMANTIC APHASIA: "Joe had semantic aphasia and was unable to comprehend words." Related Psychology Terms EXPRESSIVE APHASIA SENSORIMOTOR APHASIA APHASIA AGRAMMATISM RECEPTIVE APHASIA BROCA'S APHASIA SEMANTIC JARGON FLUENT APHASIA CATAPHASIA PHRASE-STRUCTURE GRAMMAR (PSG) Cite this page: N., Pam M.S., "SEMANTIC APHASIA," in PsychologyDictionary.org, April 13, 2013, https://psychologydictionary.org/semantic-aphasia/ (accessed February 21, 2020).