| hyla | A lateral extension of the cerebral (or sylvian) aqueduct. Origin: G. Hyle, wood (05 Mar 2000) |
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| hylaeosaurus | <paleontology> A large Wealden dinosaur from the Tilgate Forest, England. It was about twenty feet long, protected by bony plates in the skin, and armed with spines. Origin: NL. Hylaeosaurus, fr. Gr. Belonging to a forest (fr. Wood) + a lizard. Source: Websters Dictionary (01 Mar 1998) |
| hylarchical | Presiding over matter. Origin: Gr. Wood, matter +: cf. F. Hylarchique. See Archical. Source: Websters Dictionary (01 Mar 1998) |
| hylase | <enzyme> Bacterial protease; do not confuse with hylase which can also mean hyaluronidase Registry number: EC 3.4.- (26 Jun 1999) |