meso-, mes-

Those organisms living in, or moving between, sand.

Prepenna following protoptile and succeeded by metaptile or by teleoptile.

1. Peritoneal fold supporting the testis in the fetus.
2. In the fetus, a fold of tunica vaginalis testis (the serous membrane surrounding the front and sides of the testicle) supporting the mesonephros and the developing testis.
3. In the adult, a fold of tunica vaginalis testis between the testis and epididymis.

1. A person or skull having a nasal index intermediate between leptorrhine and platyrrhine.
2. Having a nose of moderate width.

A biological classification of water quality according to the following categories: oligosaprobic, clear, with no or only slight pollution and high dissolved oxygen; mesosaprobic, moderately polluted; polysaprobic, strongly polluted; and antisaprobic, so polluted that no living organism is capable of living in the water.

Designating, relating to, or characteristic of running water which is partially polluted.

A “middle lizard” was an odd, fresh-water dwelling reptile, not a dinosaur, that lived from the Late Carboniferous period to the Early Permian period. It was one of the first aquatic reptiles whose fossils were found in South Africa and South America. Named by Francois-Louis Gervais in 1865.

A disease in which cancer cells are found in the sac lining the chest, the lining of the abdominal cavity, or the lining around the heart.

Exposure can result in mesothelioma thirty or forty years later because of the long latency period of asbestos disease.

People who have been exposed to asbestos in a household environment, often without knowing it, or who have worked on jobs where they breathed asbestos, are in danger of being victims of mesothelioma.

A type of plant that does not tolerate extreme temperatures and which flourishes in an environment with a moderate climate.

A reference to organisms that favor or prefer to live in temperate zones.