Skip to Main Content

We have a new app!

Take the Access library with you wherever you go—easy access to books, videos, images, podcasts, personalized features, and more.

Download the Access App here: iOS and Android


1. Not rational; insane. 2. Angry. 3. Rash, foolish, frantic. 4. Suffering from infection with rabies.


(măd-ă-rō′sĭs) [Gr. madaros, bald] Loss of eyelashes or eyebrows.

mad cow disease

Bovine spongiform encephalopathy.


(mad′ĕr) A plant (Rubia tinctorum) of the family Rubiaceae, from which the red dye alizarin is derived. SEE: alizarin; Rubiaceae.

Madelung, Otto

(mod′ĕ-lung″) Ger. surgeon, 1846–1926.

M. deformity Displacement of the hand to the radial side due to relative overgrowth of the ulna.

M. disease Generalized symmetrical deposits of fatty tissue (lipomas) on the upper back, shoulders, and neck. SYN: Madelung neck.

made with organic ingredients

A designation for food that specifies that 70% of its components are organic.

mad honey disease

Slowing of the heart rate, sinus arrest, and loss of consciousness resulting from the consumption of honey produced by bees that consume rhododendron nectar. Rhododendron honey contains grayanotoxins, which adversely affect electrochemically active cells in the cardiac pacemaker and conducting system.

Madura foot

(mă-door′ă) [from the Madur district in India where the disease was first described in 1842] A local, painless maduromycosis (mycetoma) of an exposed area, esp. bare feet. It consists of swollen infected tissues with sinus tracts and a purulent, grainy discharge. Madura foot is usually found in adult males who work outside and have poor footwear or inadequate wound care. SYN: white-grain mycetoma. SEE: maduromycosis.

ETIOLOGY: This mycetoma is caused by various fungi, e.g., actinomycetes. In the U.S., the most frequent cause is Pseudallescheria boydii.

TREATMENT: The antibiotic given depends on the specific organism involved. Clindamycin is used for actinomycetoma; ketoconazole or itraconazole has been used for eumycetomas. Surgery should not be necessary, but drug treatment often takes several months.


(mad″yŭ-rō-mī-kō′sĭs) [Madura (foot) + mycosis] A type of chronic mycetoma of the foot or hand characterized by marked swelling and development of nodules, vesicles, abscesses, and sinuses. maduromycotic (-kotik), adj.


(mog″ĕn-stras′ĕ, mog″ĕnshtras′ĕ) [Ger. Magen, stomach + Ger. Strasse, street] A groove along the lesser curvature of the stomach from the cardia to the pylorus.


(mă-jĕn′tă) The dye basic fuchsin.


(mag′ŏt) The larva of an insect, esp. the soft-bodied footless larva of flies (order Diptera). Many are parasitic and cause myiasis.

rat-tailed m. SEE: Eristalis.

maggot treatment


Pop-up div Successfully Displayed

This div only appears when the trigger link is hovered over. Otherwise it is hidden from view.