velum

• 名词，有两个不同含义：某些真菌未成熟子实体上的膜状覆盖物，以及吞咽或说话时封闭鼻咽的肌肉瓣膜。

A noun with two distinct meanings: a membranous covering found on the immature fruiting body of certain mushrooms, and a muscular flap that closes off the nasopharynx during swallowing or speaking.

1. Mushroom membraneC2formalscientific

   A thin membranous covering that protects the immature fruiting body of certain fungi, often rupturing as the mushroom matures.

   菌幕

   • The velum of the mushroom tore as the cap expanded.
   • Mycologists study the velum to identify different species of fungi.
   • A partial velum often leaves a ring on the mushroom's stalk.

   同义词veil

2. Soft palate structureC2formalmedical

   A muscular flap at the back of the roof of the mouth that separates the oral cavity from the nasal cavity during swallowing and speech.

   软腭

   • The velum lifts to close off the nasal passage during swallowing.
   • Damage to the velum can cause speech difficulties.
   • The doctor examined the patient's velum for signs of infection.

   同义词soft palate