actinomorphic

/,æktinə'mɔ:fəs/ Cách viết khác : (actinomorphic) /,æktinə'mc:fik/

Thân thiện

A daisy's actinomorphic petals radiate from its yellow center.

Definition

1. Adjective:
   • Capable of division into symmetrical halves by any longitudinal plane passing through the axis: In biology, particularly botany, this term describes a structure, usually a flower, that is radially symmetrical. This means it can be divided into two mirror-image halves along multiple longitudinal planes that pass through its center.

Usage Examples

• Adjective:
  • The daisy is an actinomorphic flower, meaning you can slice it in half from many different angles and get symmetrical parts.
  • Botanists classify the flower as actinomorphic because its petals are arranged uniformly around the central axis.

Advanced Usage

• In Botanical Classification: The term is a key descriptor in plant morphology. An actinomorphic flower is also called a "regular" flower, contrasting with "zygomorphic" (bilaterally symmetrical) flowers.
  • The family Rosaceae is known for having many genera with actinomorphic flowers.

Variants and Related Words

• Actinomorphy (noun): The quality or condition of being actinomorphic.
  • The actinomorphy of the bloom makes it attractive to a wide range of pollinators.

Synonyms

• Radially symmetrical: Having symmetry around a central axis, like the spokes of a wheel.
• Regular (in botanical context): Used specifically to describe flowers with radial symmetry.

Antonyms

• Zygomorphic: Bilaterally symmetrical; capable of division into symmetrical halves by only one specific longitudinal plane.
  • Orchids and snapdragons are classic examples of zygomorphic flowers.

Học thuật

Adjective

1. capable of division into symmetrical halves by any longitudinal plane passing through the axis

Từ đồng nghĩa

• actinomorphous