Definitions for hirudinea
hirudinea

Princeton's WordNetRate this definition:0.0 / 0 votes

1. Hirudinea, class Hirudineanoun

   hermaphroditic aquatic or terrestrial or parasitic annelids

WikipediaRate this definition:0.0 / 0 votes

1. hirudinea

   Leeches are segmented parasitic or predatory worms that comprise the subclass Hirudinea within the phylum Annelida. They are closely related to the oligochaetes, which include the earthworm, and like them have soft, muscular segmented bodies that can lengthen and contract. Both groups are hermaphrodites and have a clitellum, but leeches typically differ from the oligochaetes in having suckers at both ends and in having ring markings that do not correspond with their internal segmentation. The body is muscular and relatively solid, and the coelom, the spacious body cavity found in other annelids, is reduced to small channels. The majority of leeches live in freshwater habitats, while some species can be found in terrestrial or marine environments. The best-known species, such as the medicinal leech, Hirudo medicinalis, are hematophagous, attaching themselves to a host with a sucker and feeding on blood, having first secreted the peptide hirudin to prevent the blood from clotting. The jaws used to pierce the skin are replaced in other species by a proboscis which is pushed into the skin. A minority of leech species are predatory, mostly preying on small invertebrates. The eggs are enclosed in a cocoon, which in aquatic species is usually attached to an underwater surface; members of one family, Glossiphoniidae, exhibit parental care, the eggs being brooded by the parent. In terrestrial species, the cocoon is often concealed under a log, in a crevice or buried in damp soil. Almost seven hundred species of leech are currently recognised, of which some hundred are marine, ninety terrestrial and the remainder freshwater. Leeches have been used in medicine from ancient times until the 19th century to draw blood from patients. In modern times, leeches find medical use in treatment of joint diseases such as epicondylitis and osteoarthritis, extremity vein diseases, and in microsurgery, while hirudin is used as an anticoagulant drug to treat blood-clotting disorders.

ChatGPTRate this definition:0.0 / 0 votes

1. hirudinea

   Hirudinea is a class within the phylum Annelida that primarily includes species of leeches. These creatures are typically characterized by a flat, segmented body structure, a sucker at each end of the body, and the ability to secrete anti-coagulants. They primarily live in freshwater environments, but there are some species that are marine or terrestrial. They are known for their parasitic feeding habits, often attaching to and sucking blood from host creatures, but some species are predators.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Hirudinea

   an order of Annelida, including the leeches; -- called also Hirudinei

2. Etymology: [NL., fr. L. hirudo, hirudinis, a leech.]

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Numerology

1. Chaldean Numerology

   The numerical value of hirudinea in Chaldean Numerology is: 3

2. Pythagorean Numerology

   The numerical value of hirudinea in Pythagorean Numerology is: 8

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=hirudinea
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Hirudinea
3. ^ ChatGPT
   https://chat.openai.com
4. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/hirudinea