51吃瓜 of the Day
ultradian
adjective
of or relating to a biorhythm having a period of less than 24 hours.
More about ultradian
The English adjectives ultradian and circadian are close contemporaries鈥�1961 for ultradian, 1959 for circadian. Both adjectives refer to biological or physiological cycles, ultradian meaning 鈥渞ecurring with a period shorter than a day,鈥� and circadian 鈥渞ecurring with a period of approximately 24 hours.鈥� Both adjectives have similar formations: the Latin prefix ultra- meaning 鈥渂eyond, on the far side of鈥� and circa meaning 鈥渁round, about.鈥� The element -dian is formed from the Latin noun 诲颈脓蝉 鈥渄ay鈥� and the English adjective suffix -an, from Latin -腻苍耻蝉.
how is ultradian used?
Reindeer also ignore the absence of a light-dark cycle during the summer months. Instead, their sleep cycles are governed by ultradian rhythm, which means they sleep whenever they need to digest food.
They collected records from databases, research articles, field guides and encyclopedias about the behavior of these species, and determined whether their behavior fit into one of five patterns: nocturnal (active at night); diurnal (active in the day); cathemeral (active during both day and night); crepuscular (active only at twilight, around sunrise and sunset); and ultradian (active in cycles of a few hours at a time).
copse
noun
a thicket of small trees or bushes; a small wood.
More about copse
The noun copse, 鈥渢hicket of small trees grown for periodic felling,鈥� is a shortening of coppice (with the same meaning). Coppice comes from Old French 肠辞濒辫别茂锄, 肠辞辫别茂颈锄, 肠辞耻辫别茂锄 “woodland cleared of trees, a cutover,” a derivative from an assumed Vulgar Latin verb 肠辞濒辫腻谤别 “to cut, chop,” ultimately from Latin colaphus “a punch (with the fist),” from Greek 办贸濒补辫丑辞蝉 “a slap, blow.” Copse entered English in the 16th century.
how is copse used?
In the tops of the dark pines at the corner of the copse, could the glance sustain itself to see them, there are finches warming themselves in the sunbeams.
Between moonrise and sunset I was stumbling through the braken of the little copse that was like a tuft of hair on the brow of the great white quarry.
sudoriferous
adjective
bearing or secreting sweat.
More about sudoriferous
The English adjective sudoriferous comes from Late Latin 蝉奴诲艒谤颈蹿别谤, literally 鈥渟weat-bearing.鈥� The Latin suffix -fer 鈥渃arrying, bearing,鈥� very familiar in English, comes from the verb ferre 鈥渢o carry, bring, bear,鈥� from the common Proto-Indo-European root bher- 鈥渢o carry, bear,鈥� source of Sanskrit 产丑谩谤补迟颈, Greek 辫丑茅谤别颈苍, Celtic (Old Irish) biru, Germanic (English) bear, and Slavic (Polish) 产颈别谤补膰, all meaning 鈥渃arry.鈥� The Latin noun 蝉奴诲辞谤 is a derivative of the verb 蝉奴诲腻谤别, from the Proto-Indo-European root sweid-, swoid- 鈥渢o sweat鈥� (swoid- becomes 蝉奴诲- in Latin). The Germanic derivative of the Proto-Indo-European noun swoidos is swaitaz, which becomes 蝉飞腻迟 in Old English (English sweat). Sudoriferous entered English in the late 16th century.
how is sudoriferous used?
Jermaine’s nerves got the better of him and resulted in a rather sudoriferous audition.
Although it may sound somewhat ridiculous to be mentioning football these sudoriferous days, the news is that Glenn Davis and Felix (Doc) Blanchard should be around again some time next month–on the screen, that is.