The energy associated with the turbulent part of the flow of a fluid. (Wiktionary. 2025. Eddy kinetic energy https://en.wiktionary.org/wiki/eddy_kinetic_energy)
In oceanography, sea state is the general condition of the free surface on a large body of water—with respect to wind waves and swell—at a certain location and moment. A sea state is characterized by statistics, including the wave height, period, and power spectrum. (https://en.wikipedia.org/wiki/Sea_state)
A rare species is a group of organisms that are very uncommon, scarce, or infrequently encountered. This designation may be applied to either a plant or animal taxon, and is distinct from the term endangered or threatened. (Wikipedia. 2025. Rare species https://en.wikipedia.org/wiki/Rare_species)
Based on the degree of economic dependency on livestock, a pastoral production system has been defined as one in which 50 percent or more of household gross revenue (the total value of marketed production plus the estimated value of subsistence production) comes from livestock or livestock-related activities, or where more than 20 percent of household food energy is directly derived from livestock or livestock-related activities. (Cattle and Small Ruminant Production Systems in sub-Saharan Africa - A Systematic Review, FAO, 2002 (http://www.fao.org/docrep/005/y4176e/y4176e06.htm).)
An enzyme that catalyzes the hydrolysis of acetylcholine to choline and acetate. In the CNS, this enzyme plays a role in the function of peripheral neuromuscular junctions. (National Library of Medicine. MeSH (Medical Subject Headings). Acetylcholinesterase MeSH Descriptor Data 2024. https://meshb.nlm.nih.gov/record/ui?ui=D000110)
CAS No. 1637-39-4. An aminopurine factor in plant extracts that induces cell division. (National Library of Medicine. MeSH (Medical Subject Headings). Zeatin. https://meshb.nlm.nih.gov/record/ui?ui=D015026)
The conservation agriculture practice of drill-seeding with no prior tillage. (FAO, 2016. Save and Grow in Practice: Maize, Rice, Wheat. A Guide to Sustainable Cereal Production http://www.fao.org/3/a-i4009e.pdf Cited 14 April 2023.)
Feeding level is the amount of feed (expressed relative to maintenance requirements) supplied to an organism, determining whether it loses, maintains, or gains body condition. (Adapted from ILCA. 1990. Livestock systems research manual - Volume 1. https://openknowledge.fao.org/handle/20.500.14283/x5469e)
Note
For trophic level (the position that an organism occupies in a food chain, see "trophic level" <c_7969>. For feeding rate (level at which food is offered to an organism over an unit time, usually given as the percentage of body weight per time, see "feeding rate" <c_b85cf033>.
