n. pl. in·cu·nab·u·la (-lə) 1. A book printed before 1501; an incunable. 2. An artifact of an early period. [New Latin incūnābulum, from sing. of Latin incūnābula, swaddling clothes, cradle : in-, in; see IN-2 + cūnābula, cradle, infancy (from cūnae, cradle; see kei- in the Appendix of Indo-European roots).] in′cu·nabu·lar (-lər) adj. |
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