The condition of having a small brain (often associated with microcephaly).
microencephaly/ˌmʌɪkrəʊɛnˈsɛfəli/ /ˌmʌɪkrəʊɛnˈsɛf(ə)li/ /ˌmʌɪkrəʊɛnˈkɛfəli/
Late 19th century; earliest use found in The New Sydenham Society's Lexicon of Medicine and the Allied Sciences. From micro- + -encephaly, as alteration of micrencephalia.
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