Glossary of ALL Terms for Data on EOL


national museum of natural history (nmnh)
natural history museum in Washington, D.C.
native range includes
Lists jurisdictions in which a given organism is a member of the undisturbed fauna or flora.
natural harbor
A harbor which is formed by a natural landform where a part of a body of water is protected and deep enough to furnish anchorage.
nature reserve
A protected area of importance for wildlife, flora, fauna or features of geological or other special interest, which is reserved and managed for conservation and to provide special opportunities for study or research. Nature reserves may be designated by government institutions in some countries, such as the United Kingdom, or by private landowners, such as charities and research institutions, regardless of nationality.
nauplius eye
An eye that consists of a cluster of three or four pit eyes that form a single structural unit but are separated from one another by pigment layers
nauplius stage
The free-swimming first stage of the larva of certain crustaceans, having an unsegmented body with three pairs of appendages and a single median eye. The eye is known for that reason as the 'naupliar eye', and is often absent in later developmental stages, although it is retained into the adult form in some groups, such as the Notostraca.
near threatened
A taxon is Near Threatened when it has been evaluated against the criteria but does not qualify for Critically Endangered, Endangered or Vulnerable now, but is close to qualifying for or is likely to qualify for a threatened category in the near future
organism that consumes sugar-rich nectar produced by flowering plants
Active swimming organisms that live in the water column and are able to move independently of the water mass (adapted from Lincoln et al., 1998).
Active swimming organisms that live near the bottom a body of water.
neogenen period
International Chronostratigraphic Chart:
A modified form of hemimetabolous development, with resting stages resembling the holometabolous pupa.
Of or pertaining to the period of time immediately following birth, or to the newborn.
neoproterozoic era
International Chronostratigraphic Chart:
A specimen designated as nomenclatural type subsequent to the publication of the original description in cases where the original holotype, lectotype, all paratypes and syntypes are lost or destroyed, or suppressed by the (botanical or zoological) commission on nomenclature. In zoology also called "Standard specimen" or "Representative specimen". [Zoo./Bot./Bio.]
neritic pelagic zone
The neritic epipelagic zone biome comprises the marine water column above a continental shelf.
neritic zone
The water mass of an ocean directly above a continental shelf.
nervous system
The entire nerve apparatus, composed of a central part, the brain and spinal cord, and a peripheral part, the cranial and spinal nerves, autonomic ganglia, and plexuses.
nervous system diseases
net carbon fixation rate
net amount or mass of carbon converted from CO2 to organic compounds, per time
Small aquatic organisms inhabiting the surface layer or moving on the surface film.
newborn animal
Nanogram per gram per hour
Nanogram per kilogram per minute
nitrogen fixation
The process in which nitrogen is taken from its relatively inert molecular form (N2) in the atmosphere and converted into nitrogen compounds useful for other chemical processes, such as ammonia, nitrate and nitrogen dioxide.
[database_cross_reference: Wikipedia:Nitrogen_fixation]
A concentration unit equal to one billionth of a mole (or 10^[-9] mol) of a substance per gram total mass of a solution, mixture or structure
Nanomoles per gram per hour
This statement is false; the answer to this question is no.
no harem
no parental care
no paternal care
no social group living
animal behavior characterized by activity during the night and sleeping during the day
nocturnal/crepuscular, cathemeral, crepuscular or diurnal/crepuscular
An organism that is nocturnal/crepuscular, cathemeral, crepuscular or diurnal/crepuscular
This organism is not adapted for running.
non-selective deposit feeder
An organism that feeds on mud or sand and shows little discrimination in the size or type of particles eaten. The sediment is ingested and any digestible organic material is assimilated as it passes through the alimentary canal.
non-wetland terrestrial habitat
Lichvar, R.W. and Minkin, P. 2008. Concepts and procedures for updating the National Wetland Plant List. U.S. Army Corps of Engineers, Engineer Research and Development Center, Cold Regions Research and Engineering Laboratory ERDC/CRREL TN-08-3,
non-woody epiphyte
Non-woody plants growing attached to external support without contact to the ground. Non-woody hemiepiphytes either germinate on other plants and then establish roots in the ground, or germinate on the ground and later disconnect from the soil
Engemann, K. , Sandel, B. , Boyle, B. , Enquist, B. J., Jørgensen, P. M., Kattge, J. , McGill, B. J., Morueta‐Holme, N. , Peet, R. K., Spencer, N. J., Violle, C. , Wiser, S. K. and Svenning, J. (2016), A plant growth form dataset for the New World. Ecology, 97: 3243-3243. doi:10.1002/ecy.1569
nonadecanoic acid
norian age
International Chronostratigraphic Chart:
North Sea
northern arctic dwarf shrub subzone
Zone B, per the Circumpolar Arctic Vegetation Map (CAVM Team 2003)
Northwest Territories
not at risk
This species or population is not presently at risk of extinction
not invasive in
not monogamous
not present in region
This organism is known to be absent in this location or region
nucleus length
A 1D measurement of a nucleus along its longest axis.
From Ontology of Biological Attributes
nucleus width
A 1D measurement of a nucleus along its shortest axis.
from Ontology of Biological Attributes
number of fossil occurrences
The number of fossil occurrences in the Paleobiology Database ( that are identified as belonging to a particular taxon or any of its subtaxa.
number of hosts
number of host species required to complete the lifecycle of this organism
number of public records in bold
number of records in this clade in the Barcode Of Life Database (BOLD)
The exposed summit of a ridge, mountain, or peak not covered with ice or snow within an ice field or glacier. The term is typically used in areas where a permanent ice mass is present.
nutrient composition of milk
nutrient symbiotroph
An organism that acquires chemical nutrients from a symbiont
nutritional value
Any of various immature insects; especially: a larva of an insect (as a grasshopper, true bug, or mayfly) with incomplete metamorphosis that differs from the imago especially in size and in its incompletely developed wings and genitalia.