blue toadflax North American plant having racemes of blue-violet flowers
toadflax common European perennial having showy yellow and orange flowers; a naturalized weed in North America
bastard toadflax woody creeping parasite of western North America having numerous thick powdery leaves and panicles of small dull-white flowers
light reflex reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller
blue devils a state of depression
blue flag a common iris of the eastern United States having blue or blue-violet flowers; root formerly used medicinally
blue mold fungus fungus causing a serious disease in tobacco plants characterized by bluish-grey mildew on undersides of leaves
old-field toadflax North American plant having racemes of blue-violet flowers
blood fluke flatworms parasitic in the blood vessels of mammals
pilomotor reflex reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation
blue fox a variety of Arctic fox having a pale grey winter coat
Leptotyphlops blind snakes of Asia and Africa and Americas
value-added tax a tax levied on the difference between a commodity's price before taxes and its cost of production
plantar reflex flexion of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front in persons over the age of 2 years; under 2 years the results should be extension of the toes (Babinski reflex)
blue devil a coarse prickly European weed with spikes of blue flowers
false flax annual and biennial herbs of Mediterranean to central Asia
blood dyscrasia any abnormal condition of the blood
retroflex bent or curved backward
blue-headed vireo common vireo of northeastern North America with bluish slaty-grey head
soldering flux flux applied to surfaces that are to be joined by soldering