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Dicksonia arborescens
Dicksonia arborescens, the St Helena tree fern, is a tree fern (Dicksoniaceae, Cyatheales) endemic to St Helena, dominating cloud forest at 700–823 m, up to 3 m tall, first described 1788, and the earliest tree fern moved abroad (UK, 1789).
Dicksonia sellowiana
Dicksonia sellowiana, known in Brazil as xaxim, is a tree fern ranging from southern Mexico to Brazil, harvested for its fibrous trunk used as orchid substrate.
Dicksoniaceae
Dicksoniaceae is a family of tree ferns in the order Cyatheales, containing the genera Dicksonia, Calochlaena, and Lophosoria, about 35 species growing in Central and South America, south-east Asia, Australasia, and the Pacific.
Dickster
Dickster (Dick Trevor) is the psytrance alias of British producer Richard Trevor, formerly of Green Nuns of the Revolution and active since the 1990s Goa trance scene.
Dicky Barrett
Dicky Barrett (Richard Michael Barrett, born 1964) is an American singer, frontman of Boston ska-core band the Mighty Mighty Bosstones ('The Impression That I Get'), later Jimmy Kimmel Live! announcer, and lead singer of the Defiant.
Dicky Eklund
Dicky Eklund (Richard Eklund Jr., born 1957), Lowell, Massachusetts welterweight boxer who fought Sugar Ray Leonard in 1978, trained half-brother Micky Ward to the 2000 WBU title, battled crack addiction, and was portrayed by Oscar winner Christian Bale in The Fighter (2010).
Dicle Tüneli
Dicle Tüneli (Tigris Tunnel, Birkleyn Caves): natural cave system in Lice, Diyarbakır, Turkey, where the Dibni Stream, a Tigris headwater, flows underground; five caves with Assyrian royal cuneiform inscriptions and reliefs of Tiglath-pileser and Shalmaneser III.
Diclobutrazol
Diclobutrazol (dicyclobutrazole, PP296), a triazole DMI fungicide first reported in 1979 by ICI, controlled mildews, rusts, and scab; discontinued and not EU-approved, with a 0.01 mg/kg default MRL.
Diclofenac
Diclofenac, a nonsteroidal anti-inflammatory drug sold under names including Voltaren, was introduced in 1973 and is the most widely prescribed NSAID worldwide for arthritis, migraine, and musculoskeletal injuries.
Diclofop
Diclofop, a chiral aryloxyphenoxypropanoate herbicide sold as racemic diclofop-methyl (HOE 023408), inhibits ACCase to kill grass weeds in wheat and barley; EU approval runs to 31 January 2029.
Dicloran
Dicloran, also known as DCNA or Botran, is a substituted aniline fungicide used before and after harvest against Botrytis, Monilinia, and other fungal pathogens on fruits and vegetables.
Dicloxacillin
Dicloxacillin (BRL-1702, Diclocil, Dynapen) is an isoxazolyl, penicillinase-resistant oral penicillin approved by the FDA in 1968 for penicillinase-producing staphylococcal infections; highly protein-bound (97.9%), short half-life, CYP-inducing.
Dicofol
Dicofol (CAS 115-32-2), an organochlorine acaricide related to DDT, introduced 1955, used against mites on crops; banned globally under the Stockholm Convention Annex A in 2019.
DICOM
DICOM (Digital Imaging and Communications in Medicine) is the global standard for exchanging and managing medical images and related data, developed from ACR-NEMA 300 (1985) and maintained by the DICOM Standards Committee as NEMA PS3 and ISO 12052.
Dicotyledon
Dicotyledon (dicot): flowering plant whose embryo has two cotyledons, with net-veined leaves, flower parts in fours or fives, ringed stem vascular bundles, and taproots; historically a class, now known to be paraphyletic, with eudicots forming two-thirds of flowering plants.
Dicotyledon flora of Montana
The dicotyledon flora of Montana, also known as the dicots of Montana, comprises the state's dicot flowering plants, first fully documented by Booth and Wright's 1959 Flora of Montana.
Dicoumarol
Dicoumarol, also known as dicumarol or bishydroxycoumarin, is a naturally occurring vitamin K antagonist isolated from spoiled sweet clover in 1939 and the parent compound of warfarin.
Dicranales
Dicranales, an order of true mosses in subclass Dicranidae, historically included many families now shown polyphyletic; recent phylogenomics restricts it to Dicranaceae, Calymperaceae, Fissidentaceae, and Octoblepharaceae.
Dicranella
Dicranella (forklet-mosses) is a moss genus in Dicranellaceae, type species D. heteromalla; molecular phylogenetics showed it polyphyletic, prompting a narrowed circumscription and new families and genera.
Dicranota
Dicranota (Zetterstedt, 1838) is a large genus of hairy-eyed crane flies (Pediciidae) with 256 species in 11 subgenera, aquatic larvae with five hooked proleg pairs, and a mainly Palaearctic and Nearctic distribution.
Dicranum
Dicranum (broom or fork mosses) is a genus of about 90-98 acrocarpous mosses in Dicranaceae, with narrow lanceolate leaves, a single costa, and alar cells; 29 species in Europe, some endangered epiphytes.
Dicrocoeliasis
Dicrocoeliasis (lancet fluke infection, ICD-10 B66.2) is a rare zoonotic bile-duct trematodiasis caused by Dicrocoelium dendriticum or D. hospes, acquired by accidentally eating infected ants; snail and ant intermediate hosts, mostly asymptomatic, treated with praziquantel or triclabendazole.
Dicroglossidae
Dicroglossidae, fork-tongued frogs (叉舌蛙科), a family of 257 frog species in subfamilies Dicroglossinae and Occidozyginae, ranging across Africa, Arabia, and southern and eastern Asia; name nomenclaturally disputed.
Dicrostonyx
Dicrostonyx (collared lemmings) is a genus of arvicoline rodents, family Cricetidae, of the circumpolar tundra; ITIS lists eight species, and the genus is distinguished by winter-white pelage and unique bifid digging claws.
Dicrotophos
Dicrotophos (Bidrin, Carbicron; CAS 141-66-2) is an organophosphate insecticide and cholinesterase inhibitor used mainly on cotton in the United States; a restricted-use, EU-unapproved yellow-brown liquid.
Dicrurus
Dicrurus is the main genus of drongos, family Dicruridae, tropical Old World corvoid passerines with about 21 species across Africa, Asia, and Madagascar, conserved in plumage but variable in voice.
DICT domain
DICT (PF10069, IPR019278), Domain associated with diguanylate Cyclases and phosphodiesterases, is a bacterial sensory protein domain in diguanylate cyclases and two-component systems, part of cyclic di-GMP signaling alongside GGDEF and EAL domains.
Dictamnus
Dictamnus, the gas plant or burning bush genus (Fraxinella), is a Rutaceae genus of three accepted species of temperate Eurasian aromatic herbs, chemically distinct in quinoline alkaloids and limonoids, phylogenetically isolated from Ruteae, and long used in traditional medicine.
Dictaphone
Dictaphone is a trademarked brand of dictation machines and a generic term for speech recorders, first marketed by Columbia Graphophone in 1907 and now owned by Microsoft through Nuance Communications.
Dictator
Dictator: modern ruler with extraconstitutional, unaccountable power, also called autocrat or authoritarian leader; from the temporary Roman emergency office; types include military, one-party, and personalist rule.