papilla

• 指动植物体表或器官上的一种小的乳头状突起或隆起，如花瓣、叶片上的小突起，或舌等感觉器官上的乳突。

A small, nipple-like projection or protuberance found on various parts of plants and animals, such as on petals, leaves, or in sensory organs like the tongue.

1. Botanical outgrowthC1formalscientific

   A small, nipple-like projection on the surface of a plant part, such as a petal or leaf.

   乳突

   • The petal's surface is covered in tiny papillae that give it a velvety texture.
   • Botanists study the papillae on leaves to understand plant adaptation.
   • The papillae on the orchid's lip help attract pollinators.

   同义词excrescenceoutgrowthprocessprojectionprotuberancetubercle

2. Sensory organC1formalscientific

   A small, nipple-shaped structure on the tongue or skin that is involved in the senses of taste, touch, or smell.

   乳突

   • Taste buds are located within the papillae on the tongue.
   • The dermal papillae in the skin contain nerve endings for touch.
   • Olfactory papillae in the nose detect airborne chemicals.

3. Anatomical projectionC1formalscientific

   A small projection of tissue found at the base of a hair, tooth, or feather.

   解剖学突起

   • The hair papilla supplies blood to the growing hair follicle.
   • Dental papillae form the dentin of a developing tooth.
   • Feather papillae are visible on a bird's skin before the feather emerges.

   同义词mammillanippleprocessprojectionprotuberancetubercle