bipinnate

Thân thiện

A fern frond displays a delicate bipinnate structure.

Definition

1. Adjective:
   • Having doubly pinnate leaflets: Describes a leaf shape where the leaflets are themselves pinnately divided, resulting in a feather-like structure that is compound twice over. This arrangement is common in certain ferns and flowering plants.

Usage Examples

• Adjective:
  • The bipinnate leaves of the mimosa tree are delicate and fern-like.
  • Botanists identified the plant by its distinctive bipinnate foliage.

Advanced Usage

• Botanical Terminology: In precise botanical descriptions, "bipinnate" specifies a particular level of leaf complexity, often contrasted with "pinnate" (once divided) or "tripinnate" (thrice divided).
  • The frond's architecture was described as bipinnate-pinnatifid, indicating further subdivision.

Variants and Related Words

• Pinnate (adj): Having leaflets arranged on either side of a central stem, like a feather.
• Tripinnate (adj): Having leaflets that are themselves bipinnate; divided three times pinnately.
• Bipinnately (adv): In a bipinnate manner.
  • The leaflets are arranged bipinnately.

Synonyms

• Twice-pinnate: Having a pinnate structure that is itself pinnately divided.

Related Phrases

• Bipinnate leaf: The complete leaf structure characterized by this double division.
  • The herbarium specimen displayed a perfect bipinnate leaf.

Học thuật

Adjective

1. of a leaf shape; having doubly pinnate leaflets (as ferns)