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



RESET




Word of the Day

13 June 2025

AIRPLANE

(noun) an aircraft that has a fixed wing and is powered by propellers or jets; “the flight was delayed due to trouble with the airplane”


coffee icon

Coffee Trivia

In 1884, Angelo Moriondo of Turin, Italy, demonstrated the first working example of an espresso machine.

coffee icon