Facultative in a Sentence
  • Since 1875, 1000 citizens can claim a popular vote (facultative Referendum) on all bills, or can exercise the right of initiative whether as to laws or the revision of the cantonal constitution.
  • The provisions of neither convention are obligatory, but merely " facultative," amounting only to recommendations.
  • In many cases the colour-production is dependent on certain definite conditions - temperature, presence of oxygen, nature of the food-medium, &c. Ewart's important discovery that some of these lipochrome pigments occlude oxygen, while others do not, may have bearings on the facultative anaerobism of these organisms.
  • Similarly we are unable to divide Schizomycetes sharply into parasites and saprophytes, since it is well proved that a number of species - facultative parasites - can become one or the other according to circumstances.
  • Many strains are facultative intracellular parasites which produce endotoxins and enterotoxins.
  • By the latest enactments (one dating from 1905) 2500 citizens can claim a vote ("facultative referendum") as to any legislative project, or can exercise the "right of initiative" as to any such project or as to the revision of the cantonal constitution.
  • Some fungi, though able to live as saprophytes, occasionally enter the body of living plants, and are thus termed facultative parasites.
  • Many bacteria may however grow in both the presence or absence of oxygen, and these are termed facultative anaerobes.
  • The facultative species can be subdivided into primary and secondary facultative ectoparasites.