[ vir-yuh-luhnt, vir-uh- ]

actively poisonous; intensely noxious

[ ri-kal-si-truhnt ]

having an obstinately uncooperative attitude toward authority or discipline

[ tsahyt-gey-ber ]

an environmental cue, as the length of daylight or the degree of temperature, that helps to regulate the cycles of an organism's biological clock

[ kal-uhm-nee ]

a false and malicious statement designed to injure the reputation of someone or something

[ uh-skrahyb ]

to credit or assign, as to a cause or source; attribute; impute

[ œ-yad ]

an amorous glance; ogle

[ preyt ]

to talk excessively and pointlessly; babble

[ kon-uh-sur ]

an expert judge in matters of taste

[ chok-uh-blok ]

extremely full; crowded; jammed