A surname from German.

(biology) The thorax of an insect. / (medicine) The trunk (torso) of the human body or other animal body. / (medicine) An arterial trunk, such as the truncus arteriosus.

(pharmacology) The antibiotic 7-fluoro-6-(4-methylpiperazin-1-yl)-10-oxo-4-thia-1-azatricyclo[7.3.1.0^5,13]trideca-5(13),6,8,11-tetraene-11-carboxylic acid.

(organic chemistry) Any of several isomeric tricyclic heterocycles composed of a pyrrole ring fused to indoline