euplastic

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Readily transformed into tissue, as in the healing of a wound.

from The Century Dictionary.

• In physiology, capable of being transformed into permanent organized tissue.
• noun A substance thus transformable.

from the GNU version of the Collaborative International Dictionary of English.

• adjective (Med.) Having the capacity of becoming organizable in a high degree, as the matter forming the false membranes which sometimes result from acute inflammation in a healthy person.
• noun (Med.) Organizable substance by which the tissues of an animal body are renewed.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Describing an organizable substance by which the tissues of an animal body are renewed.