| bouton | A button, pustule, or knob-like swelling. Origin: Fr. Button (05 Mar 2000) |
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| bouton de Bagdad | Bouton d'Orient, the lesion occurring in cutaneous leishmaniasis. Synonym: bouton de Biskra. Bouton en chemise, small abscess of the intestinal mucosa, occurring in amoebic dysentery. Boutons en passage, consecutive synapses along the course of an axon. (05 Mar 2000) |
| bouton de Biskra | Bouton d'Orient, the lesion occurring in cutaneous leishmaniasis. Synonym: bouton de Biskra. Bouton en chemise, small abscess of the intestinal mucosa, occurring in amoebic dysentery. Boutons en passage, consecutive synapses along the course of an axon. (05 Mar 2000) |
| boutonneuse | Fi |
| boutonneuse fever | A febrile disease of the mediterranean area, the crimea, africa, and india, caused by infection with rickettsia conorii. (12 Dec 1998) |
| boutonniere | A traumatically produced slit or buttonhole-like opening. Origin: Fr. Buttonhole (05 Mar 2000) |
| boutonniere deformity | Flexion of the proximal interphalangeal joint with hyperextension of the distal interphalangeal joint of the finger, caused by splitting of the extensor hood and protrusion of the head of the proximal phalanx through the resulting "buttonhole." (05 Mar 2000) |