1. aquatic mammal whales and dolphins; manatees and dugongs; walruses; seals
  2. Age of Mammals approximately the last 63 million years
  3. aquatics sports that involve bodies of water
  4. altocumulus a cumulus cloud at an intermediate altitude of 2 or 3 miles
  5. Acheta assimilis common American black cricket
  6. pouched mammal mammals of which the females have a pouch (the marsupium) containing the teats where the young are fed and carried
  7. young mammal any immature mammal
  8. acoustic meatus either of the passages in the outer ear from the auricle to the tympanic membrane
  9. egg-laying mammal the most primitive mammals comprising the only extant members of the subclass Prototheria
  10. catechismal of or relating to a catechism summarizing the principles of Christianity
  11. arctic moss an erect greyish branching lichen of Arctic and even some north temperate regions constituting the chief food for reindeer and caribou and sometimes being eaten by humans
  12. pragmatic concerned with practical matters
  13. aquatic plant a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth
  14. Equisetum hyemale evergreen erect horsetail with rough-edged stems
  15. aquatic operating or living or growing in water
  16. gnawing mammal relative large gnawing animals
  17. Agathis dammara native to the Moluccas and Philippines
  18. aquatic bird wading and swimming and diving birds of either fresh or salt water
  19. aquatic fern ferns that grow in water
  20. digitigrade mammal an animal that walks so that only the toes touch the ground as e.g. dogs and cats and horses