Spectacled tern Spectacled tern The spectacled tern ("Onychoprion lunatus"), also known as the grey-backed tern, is a seabird in the family Laridae. A close relative of the bridled and sooty terns (with which it is sometimes confused), the spectacled tern is less common than the other members of its genus and it has been studied less. The three species, along with the Aleutian tern were recently split into a new genus "Onychoprion" from "Sterna" (Bridge "et al.", 2005). They resemble the sooty tern but with a grey back instead of a black one. Their breast and underparts are white, and they have
Numerology in other varieties of Chinese: Some "lucky number" combinations include: In South India, mostly Tamil Nadu, the numbers assigned to English alphabets are different. The list is shown below: There is no assignment for the number 9. Numerologists analyze double-digit numbers from 10 to 99. Fifth generation (5G), a.k.a. New Radio (NR), uses the term "numerology" to describe the combination of subcarrier spacing and symbol length. For example, in NR(5G) several different numerology (i.e., different subcarrier spacing and symbol length) are supported whearas in LTE there is only one numerology. Scientific theories are sometimes labeled "numerology" if their primary inspiration