DICTIONARY A absorb (verb) ab-'zorrb to take in or soak up Dark plants in the tundra absorb more sunlight. active (adjective) 'ak-tiv doing something, moving around The children stayed active by pulling a rope. activist (noun) 'ak-ti-vist someone who strongly supports a certain cause Penelope Barker was an activist during the American Revolution. acute angle (noun) uh-'kyūt 'an-guhl an angle that measures less than 90° This acute angle measures 58°. adapt (verb) uh-'dapt to change so it’s easier to live somewhere Animals adapt to their environment. This mouse has adapted by being nocturnal. adaptation (noun) a-dap-'tā-shun the process of changing so it’s easier to live somewhere The cactus shows adaptation by storing water in its trunk. admit (verb) ad-'mit to tell the truth I admit that I broke the plates. affect (verb) uh-'fekt to cause something to change Weather affects what I wear outside. agriculture (noun) 'a-gri-kul-churr the work of raising crops and farm animals In industrial agriculture, farmers grow one large crop in an area. ancestor (noun) 'an-ses-turr a person from whom one is descended My dad has old photos of my ancestors. angle (noun) 'an-guhl the figure made by two lines from a single point This is a 90° angle. anxious (adjective) 'ank-shus feeling nervous or worried The boy is anxious about the math test. 326 DICTIONARY absorb anxious
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