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Glossary: meander

February 15th, 2012 — 3:34pm

A curve, bend or loop along the course of a river or stream.

Glossary: mechanical filtration

February 24th, 2012 — 1:31pm

Type of filtration that physically removes solid particles and objects from the water.

Glossary: medial

February 15th, 2012 — 3:34pm

Relating to, situated on or in, or extending towards the middle; median. Opposite of lateral.

Glossary: median

February 15th, 2012 — 3:34pm

See medial.

Glossary: melanin

February 15th, 2012 — 3:34pm

Any of various black, dark brown, reddish-brown, or yellow pigments found in animal or plants.

Glossary: melanism

February 22nd, 2012 — 4:32pm

Abnormal extent of dark colouration in the skin, scales, hair, fur, or feathers characterised by excessive depositis of melanin. Can be considered the opposite of albinism.

Glossary: melanophore

February 15th, 2012 — 3:34pm

Pigment cell containing melanin.

Glossary: membrane

February 15th, 2012 — 3:34pm

Thin, usually flexible layer of tissue covering, lining, separating, or connecting cells or parts of an organism.

Glossary: membranous

February 16th, 2012 — 7:34pm

Relating to, composed of or similar to a membrane.

Glossary: meniscus

February 15th, 2012 — 3:34pm

Curve caused by surface tension visible in the upper surface of a liquid close to the side of a container or other object. My be concave or convex in shape depending on the liquid and surface involved.

Glossary: mental

February 15th, 2012 — 3:34pm

Of, relating to, or located on the chin.

Glossary: mental barbel

February 15th, 2012 — 3:34pm

Barbel located on the chin.

Glossary: meristic

February 15th, 2012 — 3:34pm

Having a number of parts, or divided into repeated, countable features; segmented; of or related to such characters.

Glossary: meristic character

February 15th, 2012 — 3:34pm

A countable trait, e.g., the number of rays in a fin, gill rakers, lateral line scales, etc..

Glossary: meristics

February 15th, 2012 — 3:34pm

In ichthyology, the counting of quantitative characters, such as the number of fins, fin rays or scales.

Glossary: mesethmoid

February 15th, 2012 — 3:34pm

Skull bone separating the nasal cavities.

Glossary: mesial

February 15th, 2012 — 3:34pm

Of, in, or orientated towards the middle line of a body.

Glossary: meso-

February 15th, 2012 — 3:34pm

Prefix meaning middle or mid.

Glossary: mesocoracoid

February 15th, 2012 — 3:34pm

Paired bone situated in the pectoral girdle, below the cleithrum.

Glossary: Mesozoic (Era)

May 21st, 2012 — 9:11am

Interval of geological time covering the period from around 250 million years ago to 65 million years ago. Often referred to as the ‘Age of Reptiles’¬†because dinosaurs¬†were the dominant terrestrial and marine vertebrates.