Defn: One of the bones of either the carpus or tarsus.

MESOPODIUM
Mes`o*po"di*um, n. Etym: [NL. See Mesopodiale.] (Zoöl.)

Defn: The middle portion of the foot in the Gastropoda and Pteropoda.

MESOPTERYGIUM
Me*sop`te*ryg"i*um, n. Etym: [NL., fr. Gr. (Anat.)

Defn: The middle one of the three principal basal cartilages in the
fins of fishes.
— Me*sop`ter*yg"i*al, a.

MESORCHIUM
Me*sor"chi*um, n. Etym: [NL., fr. Gr. (Anat.)

Defn: The fold of peritoneum which attaches the testis to the dorsal wall of the body cavity or scrotal sac.

MESORECTUM
Mes`o*rec"tum, n. Etym: [Meso- + rectum.] (Anat.)

Defn: The fold of peritoneum, or mesentery, attached to the rectum.
— Mes`o*rec"tal, a.

MESORHINE
Mes"o*rhine, a. Etym: [Meso- + Gr. (Anat.)