from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A rooflike structure of the body, especially the dorsal part of the midbrain.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The dorsal portion of the midbrain, containing the superior colliculus and inferior colliculus
- n. The interconnected outer surface of a spore.
from The Century Dictionary and Cyclopedia
- n. Same as tectorium.
Latin tēctum, roof, from neuter past participle of tegere, to cover.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin tectum ("roof"), from tegō ("I cover"), cognate with Ancient Greek τέγος (tegos, "roof; any covered room of a house"). (Wiktionary)