Libriform \Li"bri*form\ (l[imac]"br[i^]*f[^o]rm), a. [Liber + -form.]

(Bot.) Having the form of liber, or resembling liber.

Libriform cells, peculiar wood cells which are very slender and relatively thick-walled, and occasionally are furnished with bordered pits. --Goodale.

Source: Webster's Revised Unabridged Dictionary (1913)