photosynthesis formation of compounds in plants aided by radiant energy
juxtaposition the act of positioning close together
footstep the sound of a step of someone walking
photostat a photocopy made on a Photostat machine
Photostat a duplicating machine that makes quick positive or negative copies directly on the surface of prepared paper
phototropism an organism's orienting response to light
protoceratops small horned dinosaur
photometrist someone who practices photometry
pit stop a stop during an automobile trip for rest and refreshment
widow's weeds a black garment worn by a widow as a sign of mourning
tidytips California annual having flower heads with yellow rays tipped with white
photosensitize make (an organism or substance) sensitive to the influence of radiant energy and especially light
photosensitise make (an organism or substance) sensitive to the influence of radiant energy and especially light
photoretinitis damage to the retina resulting from exposure of the eye to the sun without adequate protection
flight of steps a stairway between one floor or landing and the next
photosynthetic relating to or using or formed by photosynthesis
footstool a low seat or a stool to rest the feet of a seated person
photosphere the intensely luminous surface of a star
radioisotope a radioactive isotope of an element
fetoscopy prenatal diagnosis that allows direct observation of a fetus in the uterus and the withdrawal of fetal blood