PLEURAS

PLEURA

Pleu"ra, n.,

Definition: pl. of Pleuron.

Pleu"ra, n.; pl. L. Pleuræ, E. Pleuras. Etym: [NL., n. fem., fr. Gr.

1. (Anat.) (a) The smooth serous membrane which closely covers the lungs and the adjacent surfaces of the thorax; the pleural membrane. (b) The closed sac formed by the pleural membrane about each lung, or the fold of membrane connecting each lung with the body wall.

2. (Zoöl.)

Definition: Same as Pleuron.

PLEURON

Pleu"ron, n.; pl. Pleura. Etym: [NL., fr. Gr. (Zoöl.) (a) One of the sides of an animal. (b) One of the lateral pieces of a somite of an insect. (c) One of lateral processes of a somite of a crustacean.

Source: Webster’s Unabridged Dictionary 1913 Edition