Webster's Dictionary 1913

2620

Mesorchium

‖Me‐sor″chi‐um (?), n. [NL., fr. Gr. μέσοσ middle + � a testicle.] (Anat.) The fold of peritoneum which attaches the testis to the dorsal wall of the body cavity or scrotal sac.

2621

Mesorectum

‖Mes′o‐rec″tum (?), n. [Meso- + rectum.] (Anat.) The fold of peritoneum, or mesentery, attached to the rectum. — Mes′o‐rec″tal (#), a.

2622

Mesorhine

Mes″o‐rhine (?), a. [Meso- + Gr. �, �, the nose.] (Anat.) Having the nose of medium width; between leptorhine and platyrhine.

2623

Mesosauria

‖Mes′o‐sau″ri‐a (?), n. Same as Mosasauria.

2624

Mesoscapula

‖Mes′o‐scap″u‐la (?), n. [Meso- + scapula.] (Anat.) A process from the middle of the scapula in some animals; the spine of the scapula.

2625

Mesoscapular

Mes′o‐scap″u‐lar (?), a.(Anat.) Of or pertaining to the mesoscapula.

2626

Mesoscutum

‖Mes′o‐scu″tum (?), n. [Meso- + scutum.] (Zoöl.) The scutum or dorsal plate of the middle thoracic segment of an insect. See Illust. of Butterfly.

2627

Mesoseme

Mes″o‐seme (?), a. [Meso- + Gr. � sign, mark; cf. F. mésosème.] (Anat.) Having a medium orbital index; having orbits neither broad nor narrow; between megaseme and microseme.

2628

Mesosiderite

Mes′o‐sid″er‐ite (?), n. [Meso- + siderite.] (Min.) See the Note under Meteorite.

2629

Mesosperm

Mes″o‐sperm (?), n. [Meso- + Gr. � seed: cf. F. mésosperme.] (Bot.) A membrane of a seed. See Secundine.

2630

Mesostate

Mes″o‐state (?), n. [Meso- + Gr. � to make to stand.] (Physiol.) A product of metabolic action.☞ Every mesostate is either an anastate or katastate, according as it is formed by...

2631

Mesosternal

Mes′o‐ster″nal (?), a.(Anat.) Of or pertaining to the mesosternum.

2632

Mesosternum

‖Mes′o‐ster″num (?), n. [Meso- + sternum.]1. (Anat.) The middle portion, or body, of the sternum.2. (Zoöl.) The ventral piece of the middle segment of the thorax in insects.

2633

Mesotartaric

Mes′o‐tar‐tar″ic (?), a. [Meso- + tartaric.] (Chem.) Pertaining to, or designating, an acid called also inactive tartaric acid.

2634

Mesotheca

‖Mes′o‐the″ca (?), n. [NL., fr. Gr. μέσοσ middle + � box.] (Zoöl.) The middle layer of the gonophore in the Hydrozoa.

2635

Mesothelium

‖Mes′o‐the″li‐um (?), n. [NL., fr. Gr. μέσοσ middle + E. epithelium.] (Biol.) Epithelial mesoderm; a layer of cuboidal epithelium cells, formed from a portion of the mesoderm du...

2636

Mesothoracic

Mes′o‐tho‐rac″ic (?), a.(Zoöl.) Of or pertaining to the mesothorax.

2637

Mesothorax

Mes′o‐tho″rax (?), n. [Meso- + thorax: cf. F. mésothorax.] (Zoöl.) The middle segment of the thorax in insects. See Illust. of Coleoptera.

2638

Mesothorium

‖Mes′o‐tho″ri‐um (?), n. [NL.; meso- + thorium.] (Chem.) A radioactive product intermediate between thorium and radiothorium, with a period of 5.5 years.

2639

Mesotrochal

Mes″o‐tro′chal (?), a. [Meso- + Gr. � anything round, a hoop.] (Zoöl.) Having the middle of the body surrounded by bands of cilia; — said of the larvæ of certain marine annelids.

2640

Mesotype

Mes″o‐type (?), n. [Meso- + -type: cf. F. mésotype.] (Min.) An old term covering natrolite or soda mesolite, scolecite or lime mesotype, and mesolite or lime-soda mesotype.

2641

Mesovarium

‖Mes′o‐va″ri‐um (?), n. [NL. See Meso-, and Ovary.] (Anat.) The fold of peritoneum connecting the ovary with the wall of the abdominal cavity.

2642

Mesoxalate

Mes‐ox″a‐late (?), n.(Chem.) A salt of mesoxalic acid.

2643

Mesoxalic

Mes′ox‐al″ic (?), a. [Mes- + oxalic.] (Chem.) Pertaining to, or designating, an acid, CH2O2(CO2H)2, obtained from amido malonic acid.

2644

Mesozoa

‖Mes′o‐zo″a (?), n. pl. [NL. See Mesozoic.] (Zoöl.) A group of very lowly organized, wormlike parasites, including the Dicyemata. They are found in cephalopods. See Dicyemata.

2645

Mesozoic

Mes′o‐zo″ic (?), a. [Meso- + Gr. � life, fr. � to live.] (Geol.) Belonging, or relating, to the secondary or reptilian age, or the era between the Paleozoic and Cenozoic. See Ch...

2646

Mesozoic (2)

Mes′o‐zo″ic, n. The Mesozoic age or formation.