countercurrent process
71Energy recovery ventilation — is the process of exchanging the energy contained in normally exhausted building or space air and using it to treat the incoming outdoor ventilation air in residential and commercial HVAC systems. The benefit of using energy recovery is the… …
72Semen quality — is a measure of the ability of semen to accomplish fertilisation. Thus, it is a measure of fertility in a man. It is the sperm in the semen that are of importance, and therefore semen quality involves both sperm quantity and sperm… …
73hafnium — /haf nee euhm, hahf /, n. Chem. a gray, toxic metallic element with a high melting point (over 2000°C), found in most zirconium minerals. Symbol: Hf; at. wt.: 178.49; at. no.: 72; sp. gr.: 12.1. [1923; < NL Hafn(ia) Copenhagen + IUM] * * * ▪… …
74distribution — 1. The passage of the branches of arteries or nerves to the tissues and organs. 2. The area in which the branches of an artery or a nerve terminate, or the area supplied by such an artery or nerve. 3. The relative numbers of individuals in each… …
75Glomerulus — Infobox Anatomy Name = PAGENAME Latin = glomerulus renis GraySubject = 253 GrayPage = 1221 Caption = Glomerulus. Caption2 = Distribution of bloodvessels in cortex of kidney. Precursor = Metanephric blastema System = Artery = Vein = Nerve = Lymph …
76Natriuresis — is the process of excretion of sodium in the urine via action of the kidneys. Natriuresis is promoted (more sodium is excreted) by Brain and Atrial natriuretic peptides, and it is inhibited (sodium is conserved) by chemicals such as aldosterone.… …
77Economizer — Economizers, or in British English economisers, are mechanical devices intended to reduce energy consumption, or to perform another useful function like preheating a fluid. The term economizer is used for other purposes as well. Boiler,… …
78Palau — [pä lou′] country consisting of a group of islands in the W Pacific Ocean: formerly part of the Trust Territory of the Pacific Islands, the island group became an independent republic in 1994: 630 sq mi (1,632 sq km); pop. 15,000; cap. Koror * *… …
79Atlantic Ocean — an ocean bounded by North America and South America in the Western Hemisphere and by Europe and Africa in the Eastern Hemisphere. ab. 31,530,000 sq. mi. (81,663,000 sq. km); with connecting seas ab. 41,000,000 sq. mi. (106,100,000 sq. km);… …
80copra — /kop reuh, koh preuh/, n. the dried kernel or meat of the coconut from which coconut oil is expressed. Also, copperah. [1575 85; < Pg < Malayalam koppara < Hindi khopra coconut] * * * ▪ coconut product dried sections of the meat of the… …
