dura mater
noun
du·ra ma·ter ˈdu̇r-ə-ˌmā-tər 
ˈdyu̇r-,
-ˌmä-
: the tough fibrous membrane that envelops the brain and spinal cord external to the arachnoid and pia mater
Example Sentences
Recent Examples on the Web The accounts said Oliverson was believed to have fractured his skull and suffered an epidural hematoma, which sees blood build between the skull and dura mater, the outermost layer protecting the brain. 
Chantal Da Silva, NBC News, 17 Aug. 2022 An epidural hematoma involves bleeding from a ruptured blood vessel in the space between the skull and the covering around the brain, called the dura mater. Ashley Abramson, Health.com, 14 Feb. 2022 The inside, the dura mater, which means 'tough mother,' is a tough lining of skin around the brain. Miriam Fauzia, USA TODAY, 9 July 2020 Battlefield surgeons also treated head wounds by cutting away bone while trying not to puncture the brain’s delicate dura mater membrane. Lizzie Wade, Science | AAAS, 8 June 2018 Cerebrospinal fluid is produced continuously in the brain and is normally absorbed into the bloodstream through protrusions in the outer membrane of the brain, called the dura mater. Mark Lieber, CNN, 8 May 2018 One of the two human brains was a whole brain that still had its cover tissue, or dura mater. Priscella Vega, latimes.com, 24 Apr. 2018 See More
Chantal Da Silva, NBC News, 17 Aug. 2022 An epidural hematoma involves bleeding from a ruptured blood vessel in the space between the skull and the covering around the brain, called the dura mater. Ashley Abramson, Health.com, 14 Feb. 2022 The inside, the dura mater, which means 'tough mother,' is a tough lining of skin around the brain. Miriam Fauzia, USA TODAY, 9 July 2020 Battlefield surgeons also treated head wounds by cutting away bone while trying not to puncture the brain’s delicate dura mater membrane. Lizzie Wade, Science | AAAS, 8 June 2018 Cerebrospinal fluid is produced continuously in the brain and is normally absorbed into the bloodstream through protrusions in the outer membrane of the brain, called the dura mater. Mark Lieber, CNN, 8 May 2018 One of the two human brains was a whole brain that still had its cover tissue, or dura mater. Priscella Vega, latimes.com, 24 Apr. 2018 See More Word History
Etymology
Middle English, from Medieval Latin, literally, hard mother
First Known Use
14th century, in the meaning defined above
Medical Definition
dura mater
noun
du·ra ma·ter ˈd(y)u̇r-ə-ˌmāt-ər -ˌmät-
-ˌmät- : the tough fibrous membrane lined with endothelium on the inner surface that envelops the brain and spinal cord external to the arachnoid and pia mater, that in the cranium closely lines the bone, does not dip down between the convolutions, and contains numerous blood vessels and venous sinuses, and that in the spinal cord is separated from the bone by a considerable space and contains no venous sinuses
called also dura
- keeping (from)
- keeping (on)
- keeping (someone) posted
- keeping (to)
- keeping a watching brief
- keeping after
- keeping an eye on
- keeping back
- keeping clear of
- keeping company
- keeping company (with)
- keeping company with
- keeping company with the likes of
- keeping down
- keeping from
- keeping going
- keeping in
- keeping off
- keeping on
- keeping one's eyes open
- keeping one's eyes open (for)
- keeping one's eyes open for
- keeping out
- keeping posted
- keeping room