n. air spaces in the skull; pathological cavity containing pus (*) sinus (*) cellular respiration (*) fissure (*) travel sickness

n. reddening of the skin (*) acyl anhydride (*) paralysis (*) pressure (*) flushing

n. acute and painful skin damage (*) estrogen (*) child (*) sunburn (*) chromatin

adv. uncommon; not usual (*) outside (*) rare (*) promptly (*) neighboring

abbr. gases used in aerosols (*) ATP (*) CFC (*) TSH (*) IVI

n. something applied from outside (*) endoplasmic reticulum (*) zinc (*) pleurisy (*) exogenous

n. international science measurements (*) galactose (*) missed dosage (*) urea (*) SI unit

n. set of irreversible changes in a cell that causes it to die (*) migraine (*) regurgitation (*) necrosis (*) lactation

n. pores on the leaf surface (*) melanin (*) stomata (*) neutron (*) histamine

n. warning; caveat (*) caution (*) monosaccharide (*) turgor pressure (*) carotene