acuminate

• 一个形容词，指逐渐收窄至尖端的，常用于植物学或动物学的形态描述。

An obsolete adjective meaning tapering to a sharp point, typically used in botanical or zoological descriptions.

1. Tapering to a pointC2formal

   Describing a shape that gradually narrows to a sharp point, often used in botany for leaves or other plant parts.

   渐尖的

   • The leaf of this species is acuminate, tapering to a fine tip.
   • Botanists noted the acuminate shape of the petals.
   • The acuminate apex of the leaf distinguishes it from similar plants.

   同义词acuteattenuatepointedsharpsharp-pointedtapering

   反义词bluntobtuseroundedtruncated

• 指使某物变尖或使某物具有尖端的（较古旧的用法），也指变得尖锐或呈尖形。

An obsolete verb meaning to sharpen or point something, or to become sharp or pointed.

1. To make sharp or pointedC2formal

   To cause something to become sharp, acute, or taper to a point.

   使变尖

   • The craftsman acuminate the tip of the needle with a file.
   • The artist acuminate the pencil to draw fine lines.
   • The sculptor acuminate the edges of the marble statue.

   同义词pointsharpentaper

   反义词bluntdull

2. To taper to a point (botany)C2formalscientific

   Describes a leaf shape that narrows gradually to a slender point.

   渐尖

   • The leaves of this plant acuminate at the tip.
   • Botanists note that the leaf shape acuminate in this species.
   • The specimen's leaves acuminate, distinguishing it from related varieties.

   同义词attenuatetaper

   反义词bluntobtuserounded