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Rostrum (from Latin rostrum, meaning beak) is a term used in anatomy for several kinds of hard, beak-like structures projecting out from the head or mouth of an animal. Despite some visual similarity, many of these are phylogenetically unrelated structures in widely varying species.
The name derives from the Latin rostrum meaning the bow of a naval vessel. [ 1 ] Rostral columns of the modern world include the Columbus Monument at Columbus Circle in New York City, [ 2 ] and the paired Saint Petersburg Rostral Columns .
Rostral and caudal: In animals with linear nervous systems, the term rostral (from the Latin rostrum, meaning "beak") is synonymous with anterior and the term caudal (from the Latin cauda, meaning "tail") is synonymous with posterior. Due to humans having an upright posture, however, our nervous system is considered to bend about 90°.
The beak, bill, or rostrum is an external anatomical structure found mostly in birds, but also in turtles, non-avian dinosaurs and a few mammals. A beak is used for pecking , grasping , and holding (in probing for food, eating , manipulating and carrying objects, killing prey , or fighting), preening , courtship , and feeding young.
The guard—also known as the rostrum, scabbard, gaine, and sheath [36] —is the part of the animal most likely to be fossilized. [ 5 ] [ 29 ] Guards are difficult to distinguish at the species level, and, consequently, synonyms are common and inflate the group's apparent diversity. [ 32 ]
The first was a project to produce a Bengali adaptation of Columbia Viking Desk Encyclopedia by Franklin Book Programs Inc., undertaken in 1959 and aborted ten years later. The unfinished papers were compiled into four unequal volumes as Bangla Vishvakosh (1972) with Khan Bahadur Abdul Hakim as the chief editor. [8]
Rostrum may refer to: Any kind of a platform for a speaker: dais; pulpit; podium; Rostrum (anatomy), a beak, or anatomical structure resembling a beak, as in the mouthparts of many sucking insects; Rostrum (ship), a form of bow on naval ships; Rostrum Records, an American record label; The Rostrum, the official monthly magazine of the National ...
Bengali is typically thought to have around 100,000 separate words, of which 16,000 (16%) are considered to be তদ্ভব tôdbhôbô, or Tadbhava (inherited Indo-Aryan vocabulary), 40,000 (40%) are তৎসম tôtśômô or Tatsama (words directly borrowed from Sanskrit), and borrowings from দেশী deśi, or "indigenous" words, which are at around 16,000 (16%) of the Bengali ...