viscus

/ˈvɪskəs/

Definitions of viscus

1. noun

   a main organ that is situated inside the body
   synonyms: internal organ

   types:

   entrails, innards, viscera

   internal organs collectively (especially those in the abdominal cavity)

   excretory organ, urinary organ

   an organ that separates waste substances from the blood and discharges them

   liver

   large and complicated reddish-brown glandular organ located in the upper right portion of the abdominal cavity; secretes bile and functions in metabolism of protein and carbohydrate and fat; synthesizes substances involved in the clotting of the blood; synthesizes vitamin A; detoxifies poisonous substances and breaks down worn-out erythrocytes

   heart, pump, ticker

   the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body

   breadbasket, stomach, tum, tummy

   an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion

   respiratory organ

   any organ involved in the process of respiration

   bowel, gut, intestine

   the part of the alimentary canal between the stomach and the anus

   hindgut

   the caudal part of the alimentary canal in vertebrate embryos

   flame cell

   organ of excretion in flatworms

   craw, crop

   a pouch in many birds and some lower animals that resembles a stomach for storage and preliminary maceration of food

   first stomach, rumen

   the first compartment of the stomach of a ruminant; here food is collected and returned to the mouth as cud for chewing

   reticulum, second stomach

   the second compartment of the stomach of a ruminant

   omasum, psalterium, third stomach

   the third compartment of the stomach of a ruminant

   abomasum, fourth stomach

   the fourth compartment of the stomach of a ruminant; the one where digestion takes place

   branchia, gill

   respiratory organ of aquatic animals that breathe oxygen dissolved in water

   kidney

   either of two bean-shaped excretory organs that filter wastes (especially urea) from the blood and excrete them and water in urine

   lung

   either of two saclike respiratory organs in the chest of vertebrates; serves to remove carbon dioxide and provide oxygen to the blood

   athlete's heart

   enlarged heart commonly found among athletes trained for endurance

   biauriculate heart

   a heart (as of mammals and birds and reptiles) having two auricles

   book lung

   organ in many arachnids containing many thin folds of membrane resembling the leaves of a book

   small intestine

   the longest part of the alimentary canal; where digestion is completed

   large intestine

   beginning with the cecum and ending with the rectum; includes the cecum and the colon and the rectum; extracts moisture from food residues which are later excreted as feces

   type of:

   organ

   a fully differentiated structural and functional unit in an animal that is specialized for some particular function