cycad

/'saikəd/

Thân thiện

A large cycad grows in a botanical garden.

Definition

Noun: 1. A type of tropical or subtropical gymnosperm plant: A cycad is a seed-producing plant belonging to the order Cycadales. It is characterized by a thick, woody, usually unbranched trunk topped with a crown of large, stiff, evergreen leaves that resemble those of ferns or palms. Cycads are ancient plants that have existed since the time of the dinosaurs.

Examples of Usage

• Noun:
  • The botanical garden has a remarkable collection of rare cycads from around the world.
  • This cycad in my yard produces a large cone every few years.
  • Fossils show that cycads were abundant during the Mesozoic era.

Advanced Usage

• As a subject of botanical study: The term is used in scientific and horticultural contexts to discuss plant evolution, conservation, or cultivation.
  • The study focused on the pollination mechanisms of the endangered cycad.
• In paleobotany: Used to describe fossil specimens or ancient ecosystems.
  • The discovery of cycad fossils helped date the rock formation.

Variants and Related Words

• Cycadaceous (adj): Relating to or characteristic of cycads.
  • The cycadaceous plants are known for their slow growth.
• Cycadophyte (n): Another term for a plant of the division Cycadophyta, which includes cycads.
  • Cycads are the most familiar living cycadophytes.

Synonyms

• Sago palm (Note: This is a common name for , one specific and widely cultivated species of cycad, not a true palm.)
• Gymnosperm: This is the broader plant group (naked seeds) to which cycads belong.

Related Phrases / Terms

• Cycad cone: The reproductive structure of a cycad, which is typically large and conspicuous.
  • The male cycad cone releases pollen into the wind.
• Crown of leaves: A descriptive phrase often used for the growth habit of cycads.
  • The old cycad had a majestic crown of leaves.

Học thuật

Noun

1. any tropical gymnosperm of the order Cycadales; having unbranched stems with a crown of fernlike leaves