chronic ulcer n.
A long-standing ulcer with fibrous scar tissue at its base.
[kron-oh] /ˈkrɒn oʊ/ noun, plural chronos. 1. . 1. a combining form meaning “time,” used in the formation of compound words: chronometer. combining form 1. indicating time: chronology, chronometer before vowels chron-, word-forming element meaning “time,” from Latinized form of Greek khrono-, comb. form of khronos “time, a defined time, a lifetime, a season, a […]
[kron-oh-bahy-ol-uh-jee] /ˌkrɒn oʊ baɪˈɒl ə dʒi/ noun 1. the science or study of the effect of time, especially rhythms, on living systems. /ˌkrɒnəbaɪˈɒlədʒɪ; ˌkrəʊnə-/ noun 1. the branch of biology concerned with the periodicity occurring in living organisms See also biological clock, circadian chronobiology chron·o·bi·ol·o·gy (krŏn’ō-bī-ŏl’ə-jē) n. The study of the effect of time on […]
[kron-uh-gram] /ˈkrɒn əˌgræm/ noun 1. an inscription in which certain Roman numeral letters express a date or epoch on being added together by their values. 2. a record made by a chronograph. /ˈkrɒnəˌɡræm; ˈkrəʊnə-/ noun 1. a phrase or inscription in which letters such as M, C, X, L and V can be read as […]
[kron-uh-graf, -grahf] /ˈkrɒn əˌgræf, -ˌgrɑf/ noun 1. a timepiece fitted with a recording device, as a stylus and rotating drum, used to mark the exact instant of an occurrence, especially in astronomy. 2. a timepiece capable of measuring extremely brief intervals of time accurately, as a stopwatch able to record fractions of a second as […]