Oxford Index Browse

You are looking at 31-40 of 49 items for:

Chemistry x Environmental Science x clear all

Refine by type

Refine by product

 

krypton

Overview page. Subjects: Chemistry — Environmental Science.

An inert gas, atomic number 36, that occurs at low concentrations (1 part in 670 000) in the atmosphere.

See overview in Oxford Index

mica

Overview page. Subjects: Chemistry — Environmental Science.

A group of silicateminerals that contain varying amounts of aluminium, potassium, magnesium, iron, and water, and that split into thin, tough, smooth plates. They are common constituents of...

See overview in Oxford Index

miscible

Overview page. Subjects: Chemistry — Environmental Science.

Capable of being mixed or blended together to form a homogeneous mixture, such as water and methanol. The opposite of miscible is immiscible.

See overview in Oxford Index

mutate

Overview page. Subjects: Environmental Science — Chemistry.

To undergo mutation and produce a mutant.

See overview in Oxford Index

neon

Overview page. Subjects: Chemistry — Environmental Science.

A colourless inert gas, atomic number 10, that occurs at low concentrations (1.8 × 10−3 per cent by volume) in the atmosphere.

See overview in Oxford Index

nitrifying bacteria

Overview page. Subjects: Environmental Science — Chemistry.

Bacteria that convert nitrites into compounds that can be used by green plants to build proteins. Also known as nitrate‐forming bacteria. See also nitrite‐forming bacteria.

See overview in Oxford Index

nonferrous metal

Overview page. Subjects: Environmental Science — Chemistry.

Any metal other than iron or any alloy that does not contain iron. In commercial terms this usually means aluminium, copper, lead, nickel, tin, zinc, or their alloys.

See overview in Oxford Index

noxa

Overview page. Subjects: Environmental Science — Chemistry.

(pl. noxae)

anything that is harmful to living organisms.

—noxious adj.

See overview in Oxford Index

oil sand

Overview page. Subjects: Chemistry — Environmental Science.

A sandstone or porous carbonate rock that is impregnated with hydrocarbons. The largest deposit of oil sand occurs in Alberta, Canada (the Athabasca tar sands); there are also deposits in...

See overview in Oxford Index

organophosphate

Overview page. Subjects: Environmental Science — Chemistry.

Any of a group of anticholinesterase compounds used as insecticides and pesticides that cause irreversible suppression of cholinesterase. Also called an organophosphorus compound. See also...

See overview in Oxford Index