ethologist
- n a zoologist who studies the behavior of animals in their natural habitats
ethology
- n the branch of zoology that studies the behavior of animals in their natural habitats
ethos
- n (anthropology) the distinctive spirit of a culture or an era
the Greek ethos
ethosuximide
- n an anticonvulsant drug (trade names Emeside and Zarontin) used to treat petit mal epilepsy
ethoxyethane
- n a colorless volatile highly inflammable liquid formerly used as an inhalation anesthetic
ethrane
- n a nonflammable liquid (trade name Ethrane) used as an inhalation general anesthetic
ethril
- n an antibiotic (trade name Erythrocin or E-Mycin or Ethril or Ilosone or Pediamycin) obtained from the actinomycete Streptomyces erythreus; effective against many Gram-positive bacteria and some Gram-negative