tectum noun. ['tɛktǝm] E20.
[Latin = roof.]
Anatomy.
1. More fully tectum mesencephali [mɛsɛn'sɛfǝlʌɪ]. The roof of the midbrain, lying to the rear of the cerebral aqueduct. E20.
2. More fully optic tectum, tectum opticum ['ɒptɪkǝm]. The part of the tectum mesencephali concerned with the functioning of the visual system. E20.

■ tectal adjective of or pertaining to the tectum mesencephali or the optic tectum E20.

[TahlilGaran] English Dictionary ▲