MESOBRANCHIAL
Mes`o*bran"chi*al, a. Etym: [Meso- + branchial.] (Zoöl.)

Defn: Of or pertaining to a region of the carapace of a crab covering the middle branchial region.

MESOBRONCHIUM
Mes`o*bron"chi*um, n.; pl. Mesobronchia. Etym: [NL. See Meso-, and
Bronchia.] (Anat.)

Defn: The main bronchus of each lung.

MESOCAECUM
Mes`o*cæ"cum, n. (Anat.) Etym: [NL. See Meso-, and Cæcum.]

Defn: The fold of peritoneum attached to the cæcum.
— Mes`o*cæ"cal, a.

MESOCARP
Mes"o*carp, n. Etym: [Meso- + Gr. (Bot.)

Defn: The middle layer of a pericarp which consists of three distinct or dissimilar layers. Gray.

MESOCEPHALIC Mes`o*ce*phal"ic, a. Etym: [Meso- + cephalic.] (Anat.) (a) Of or pertaining to, or in the region of, the middle of the head; as, the mesocephalic flexure. (b) Having the cranial cavity of medium capacity; neither megacephalic nor microcephalic. (c) Having the ratio of the length to the breadth of the cranium a medium one; mesaticephalic.

MESOCEPHALON
Mes`o*ceph"a*lon, n. Etym: [NL. See Meso-, and Cephalon.] (Anat.)