hydatoid

from The Century Dictionary.

• Watery; aqueous; resembling water in any way; specifically, in anatomy, pertaining to the aqueous humor of the eye.
• noun The aqueous humor of the eye, as distinguished from the vitreous humor.
• noun The investing membrane of the aqueous humor, as distinguished from the hyaloid investing the vitreous humor.

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

• adjective (Anat.) Resembling water; watery; aqueous; hyaloid.

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

• adjective watery, aqueous
• noun obsolete, anatomy aqueous humour