helodermatidae

Thân thiện

A Gila monster, a member of the Helodermatidae family, rests on a sun-warmed rock.

Definition

Proper noun: * Helodermatidae: The biological family name for a group of lizards, specifically the only known family of lizards that are venomous. This family is characterized by heavy bodies, bead-like scales, and venom glands in the lower jaw.

Usage

• The word Helodermatidae is used exclusively in scientific and zoological contexts to classify a specific taxonomic family. It is always capitalized.
• It functions as a singular proper noun when referring to the family as a single taxonomic unit.

Examples

• The Gila monster and the Mexican beaded lizard are the only two extant species belonging to the family Helodermatidae.
• Research into the venom of Helodermatidae has provided insights into the evolution of venom systems.
• Helodermatidae is often cited as an exception to the rule that lizards are non-venomous.

Advanced Usage

• In phylogenetic studies, Helodermatidae is discussed in relation to other lizard families to understand evolutionary relationships.
• The defining synapomorphies (shared derived characteristics) of Helodermatidae include their unique venom delivery system and osteoderms (bony deposits within the scales).

Variants and Related Words

• Helodermatid (noun/adjective): A member of the family Helodermatidae; pertaining to the family Helodermatidae.
  • Example: The helodermatid lizards are found in North America.
• Heloderma: The genus within the family Helodermatidae, containing the Gila monster () and the Mexican beaded lizard ().

Synonyms

• Venomous lizard family: A descriptive synonym, though less precise scientifically.
• Beaded lizard family: A common name reference, though it specifically references one genus ().

Notes on Meaning

This word has only one specific, technical meaning in modern English: the taxonomic family of venomous lizards. It does not have idiomatic meanings or phrasal verbs associated with it.

Học thuật

Noun

1. only known venomous lizards

Từ đồng nghĩa

• Helodermatidae
• family Helodermatidae