| mastocyte | (German Mast food + cyte) a mast cell. (18 Nov 1997) |
|---|---|
| mastocytogenesis | Formation and development of mast cells. Origin: mastocyte + G. Genesis production (05 Mar 2000) |
| mastocytoma | <oncology, tumour> Neoplastic mast cells. (18 Nov 1997) |
| mastocytosis | <radiology> Proliferation of mast cells, seen in haematopoietic regions of skeleton, sclerotic bone lesions, diffuse, patchy sclerosis, discrete, irregular, sclerotic nodules, rarely lytic lesions with densely sclerotic margins, mast cells elaborate histamine producing flushing, tachycardia, nausea, diarrhoea, pigmented, pruritic rash (urticaria pigmentosa), hepatosplenomegaly, adenopathy, thrombocytopenia; increased or decreased WBCs (12 Dec 1998) |
| mastodon | <paleontology> An extinct genus of mammals closely allied to the elephant, but having less complex molar teeth, and often a pair of lower, as well as upper, tusks, which are incisor teeth. The species were mostly larger than elephants, and their romains occur in nearly all parts of the world in deposits ranging from Miocene to late Quaternary time. Origin: Gr. The breast +, a tooth. So called from the conical projections upon its molar teeth. Source: Websters Dictionary (01 Mar 1998) |
| mastodonsaurus | <paleontology> A large extinct genus of labyrinthodonts, found in the European Triassic rocks. Origin: NL, fr. E. Mastodon + Gr. A lizard. Source: Websters Dictionary (01 Mar 1998) |
| mastodynia | <symptom> Pain in the breast. (18 Nov 1997) |
| mastodyny | <medicine> Pain occuring in the mamma or female breast, a form of neuralgia. Origin: NL. Mastodynia, fr. Gr. The breast + pain. Source: Websters Dictionary (01 Mar 1998) |
| mastoid | A bony process off the base of the skull that is composed of air cells. Inflammation of the mastoid is known as mastoiditis. (27 Sep 1997) |
| mastoid abscess | An abscess of the mastoid air cells. (05 Mar 2000) |
| mastoid air cells | Numerous small intercommunicating cavities in the mastoid process of the temporal bone that empty into the mastoid or tympanic antrum. Synonym: cellulae mastoideae, mastoid cells, mastoid sinuses. (05 Mar 2000) |
| mastoid angle of parietal bone | The posteroinferior point of the parietal bone. Synonym: angulus mastoideus ossis parietalis. (05 Mar 2000) |
| mastoid antrum | A cavity in the petrous portion of the temporal bone, communicating posteriorly with the mastoid cells and anteriorly with the epitympanic recess of the middle ear via the aperture of the mastoid antrum. Synonym: antrum mastoideum, tympanic antrum, Valsalva's antrum. (05 Mar 2000) |
| mastoid artery | <anatomy, artery> Mastoid branch of occipital artery, passing through the mastoid foramen; distribution, mastoid air cells; anastomosis, middle meningeal artery. Synonym: arteriae occipitalis, ramus mastoideus arteriae occipitalis, mastoid branch of occipital artery. (05 Mar 2000) |
| mastoid bone | The nipple-like projection of the petrous part of the temporal bone. Synonym: processus mastoideus, mastoid bone, temporal apophysis. (05 Mar 2000) |