Etymology
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semiotics (n.)
study of signs and symbols with special regard to function and origin, 1880, from semiotic; also see -ics. Medical sense is from 1660s.
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symptomatology (n.)
study of symptoms, 1737, from medical Latin symptomatologia, from symptomat-, stem of symptoma (see symptom) + -logia (see -logy). Related: Symptomatological.
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primatology (n.)

"the study of (zoological) primates," 1939, from primate (n.) in the "higher ape" sense + -ology. Related: Primatological; primatologist.

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ornithology (n.)

"scientific study or knowledge of birds," 1670s, from Modern Latin ornithologia (1590s); see ornitho- + -logy.

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choreology (n.)

"the study of dancing," 1955, from Latinized form of Greek khoreia "dance" (see chorus) + connective -o- + -logy.

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oenology (n.)

"the science of wines, the study of the nature, qualities, and varieties of wine," 1781, from oeno- "wine" + -logy. Related: Oenological; oenologist.

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heuristics (n.)

"study of heuristic methods," 1897, from heuristic (n.), for which see heuristic (adj.); also see -ics.

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zoology (n.)
"science of animals," 1660s, from Modern Latin zoologia, from Greek zoion "animal" (from PIE root *gwei- "to live") + -logia "study" (see -logy).
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pediatrics (n.)

"medical treatment of children; the branch of medicine dealing with the study of childhood and diseases of children," 1884; from pediatric; see -ics.

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topology (n.)
1650s, "study of the locations where plants are found," from Greek topos "place" (see topos) + -logy. Related: Topological.
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