Excretory
81cephalochordate — /sef euh loh kawr dayt/, adj. 1. belonging or pertaining to the Cephalochordata. n. 2. any chordate animal of the subphylum Cephalochordata, having fishlike characters but lacking a spinal column, comprising the lancelets. [ < NL Cephalochordata; …
82fish — fishless, adj. /fish/, n., pl. (esp. collectively) fish, (esp. referring to two or more kinds or species) fishes, v. n. 1. any of various cold blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with …
83Fish — /fish/, n. Hamilton, 1808 93, U.S. statesman: secretary of state 1869 77. * * * I Any of more than 24,000 species of cold blooded vertebrates found worldwide in fresh and salt water. Living species range from the primitive lampreys and hagfishes… …
84ostomy — /os teuh mee/, n., pl. ostomies. any of various surgical procedures, as a colostomy, in which an artificial opening is made so as to permit the drainage of waste products either into an appropriate organ or to the outside of the body. [1955 60;… …
85spider — spiderless, adj. spiderlike, adj. /spuy deuhr/, n. 1. any of numerous predaceous arachnids of the order Araneae, most of which spin webs that serve as nests and as traps for prey. 2. (loosely) any of various other arachnids resembling or… …
86urine — /yoor in/, n. the liquid to semisolid waste matter excreted by the kidneys, in humans being a yellowish, slightly acid, watery fluid. [1275 1325; ME < OF < L urina] * * * Liquid solution of metabolic wastes and other, often toxic, substances… …
87lamp shells — ▪ animal Introduction also called brachiopod, any member of the phylum Brachiopoda, a group of bottom dwelling marine invertebrates. They are covered by two valves, or shells; one valve covers the dorsal, or top, side; the other covers… …
88renal system — ▪ anatomy Introduction in humans (human body), organ system that includes the kidneys, where urine is produced, and the ureters, bladder, and urethra for the passage, storage, and voiding of urine. In many respects the human excretory, or… …
89ductule — A minute duct. SYN: ductulus. aberrant ductules [TA] the superior or inferior diverticula of the epididymis. SYN: ductuli aberrantes [TA], aberrant ducts, ductus aberrantes, vasa aberrantia. biliary ductules the excretory ducts of the …
90gland — An organized aggregation of cells functioning as a secretory or excretory organ. SYN: glandula (1) [TA]. [L. glans, acorn] accessory g. a small mass of glandular structure, detached from but lying near another and larger g., to which it is… …
