antipredatory aggression attack behavior directed toward a...
cerebral hemorrhage any bleeding into the brain tissue due...
genu n. (pl. genua) 1. the knee, or an anatomic...
physiological zero the temperature at which an object in co...
XYY syndrome a chromosomal anomaly discovered in 1961 and i...
angst n. 1. fear or anxiety (German). 2. in exi...