arachnoid

• Qui se rapporte à l'araignée ou à sa toile, ou qui y ressemble ; souvent utilisé dans un contexte biologique ou médical pour décrire des structures fines et délicates.

Relating to or resembling a spider or spider's web; often used in biological or medical contexts.

1. Anatomical membraneC2formalmedical

   Relating to the arachnoid mater, the delicate, web-like middle layer of the three meninges that surround the brain and spinal cord.

   Membrane arachnoïdienne

   • The arachnoid layer is located between the dura mater and the pia mater.
   • Arachnoid cysts can sometimes form within this membrane.
   • Inflammation of the arachnoid mater is known as arachnoiditis.

2. Relating to spidersC1formalscientific

   Relating to or resembling spiders or other members of the class Arachnida, which are air-breathing arthropods with simple eyes and four pairs of legs.

   Relatif aux araignées (arachnides)

   • The arachnoid features of the creature were unmistakable.
   • Spiders and scorpions are both arachnoid animals.
   • The biologist specialized in the study of arachnoid species.

   Synonymesspiderlikespidery

• Nom désignant la membrane moyenne des trois enveloppes entourant le cerveau et la moelle épinière, ou un arthropode respirant l'air avec des yeux simples et quatre paires de pattes, ou quelque chose qui se rapporte à la classe des arachnides ou qui ressemble à l'un de ses représentants.

A noun referring to the middle layer of the three meninges that surround the brain and spinal cord, or to air-breathing arthropods with simple eyes and four pairs of legs, or something relating to or resembling a member of the class Arachnida.

1. Anatomical membraneC2formalmedical

   The delicate, spider-web-like middle layer of the three meninges that surround the brain and spinal cord.

   Arachnoïde (méninge)

   • The arachnoid mater lies between the dura mater and the pia mater.
   • Inflammation of the arachnoid can cause severe headaches.
   • The surgeon carefully dissected the arachnoid layer during the operation.

   Synonymesarachnoid membrane

2. C1formalscientific

   An air-breathing arthropod belonging to the class Arachnida, characterized by having simple eyes and four pairs of legs.

   Arachnide

   • Spiders and scorpions are examples of arachnoids.
   • The arachnoid's body is divided into two main parts: the cephalothorax and the abdomen.
   • Many arachnoids are beneficial predators in gardens.

   Synonymesarachnid

3. Relating to arachnidsC1formalscientific

   Describing something that resembles or is characteristic of a member of the class Arachnida.

   arachnéen

   • The creature had an arachnoid appearance with its many legs.
   • Her arachnoid movements were quick and precise.
   • The fossil showed distinct arachnoid features.

   Synonymesarachnidianspiderlikespidery