The Collaborative International Dictionary of English v.0.48:

Enchyma \En"chy*ma\, n. [NL., fr. Gr. 'e`gchyma an infusion; 'en
   in + chei^n to pour.] (Biol.)
   The primitive formative juice, from which the tissues,
   particularly the cellular tissue, are formed.
   [1913 Webster]