Marked by unthinking recklessness with disregard for danger; boldly rash; hotheaded.
noun
A person who is foolhardy.
forehandedly
forehandedly
adv
Ahead of time, in advance.
Prudently, with thrift and foresight.
foresightedly
foresightedly
adv
With foresight; in a foresighted manner.
formaldehyd
formaldehyde
formaldehyde
noun
(organic chemistry) The simplest aldehyde, HCHO, a colourless gas that has many industrial applications; it dissolves in water to give formol (10%) and formalin.
formaldehydes
formaldehydes
noun
plural of formaldehyde
formaldehydesulphoxylate
formaldehydesulphoxylate
noun
A salt or ester of formaldehydesulphoxylic acid.
formaldehydesulphoxylic
foulmouthedly
frankheartedly
freehandedly
freehandedly
adv
In a freehanded manner.
freeheartedly
freeheartedly
adv
In a freehearted manner; lightly and without constraint or worry.
frightenedly
frightenedly
adv
In a frightened manner.
fullmouthedly
furaldehyde
furaldehyde
noun
(organic chemistry) furfural
furfuraldehyde
furfuraldehyde
Noun
furfural
grandfatherly
grandfatherly
adj
Having the characteristics of a grandfather.
In the manner of a grandfather.
halfheartedly
halfheartedly
adv
Without enthusiasm or interest.
handfastly
handfastly
adv
(obsolete) In a handfast manner
hayfield
hayfield
noun
A field of hay.
hayfields
hayfields
noun
plural of hayfield
heedfully
heedfully
adv
In a heedful manner.
hinderfully
horrifiedly
horrifiedly
adv
In a horrified manner.
hydroborofluoric
hydrodesulfurization
hydrodesulfurization
noun
(chemistry) a process for lowering the sulfur content of petroleum and similar products by catalytic hydrogenation, sulfur compounds being converted to hydrogen sulfide
hydrofluate
hydrofluate
noun
(chemistry, archaic) A supposed compound of hydrofluoric acid and a base; a fluoride.
hydrofluoboric
hydrofluoric
hydrofluoric
adj
(chemistry) Containing hydrogen and fluorine.
hydrofluorid
hydrofluoride
hydrofluoride
noun
(chemistry) A compound of hydrofluoric acid with an organic base such as an amine
hydrofluosilicate
hydrofluosilicate
noun
(chemistry) A salt of hydrofluosilic acid.
hydrofluosilicic
hydrofluozirconic
hydrofoil
hydrofoil
noun
(nautical) A vessel equipped with such a device.
(nautical) A wing attached to the hull of a ship that raises it out of the water when travelling at speed and thus reduces drag.
verb
(nautical) To operate or use or ride atop a hydrofoil wing on a hull so equipped.
hydrofoils
hydrofoils
noun
plural of hydrofoil
hydroformylation
hydroformylation
noun
(chemistry) The reaction of an olefin with carbon monoxide and hydrogen to form an aldehyde.
hydrofranklinite
hydrosulfate
hydrosulfate
noun
(chemistry) Any sulfate of an organic base
hydrosulfide
hydrosulfide
noun
(chemistry) Any compound formally derived from hydrogen sulfide by replacing one hydrogen atom with a metal or other radical; a thiol or mercaptan.
(chemistry) The HS⁻ anion.
hydrosulfite
hydrosulfite
noun
(chemistry) dithionite
hydrosulfurous
hydrosulfurous
adj
hyposulfurous
hyperconfidently
hyperfastidiously
hyperfederalist
ladyfish
ladyfish
noun
A coastal dwelling fish (Elops saurus), found throughout the tropical and sub-tropical regions.
Albula vulpes, one of the fish called bonefish.
The Spanish hogfish (Bodianus rufus)
ladyfishes
ladyfishes
noun
plural of ladyfish
metaformaldehyde
metaformaldehyde
noun
(chemistry) 1,3,5-trioxane
offhandedly
offhandedly
adv
in an offhand manner
paraformaldehyde
paraformaldehyde
noun
(organic chemistry) A solid oligomer of formaldehyde that is used as a fumigant, and as a fixative in histology
phyllopodiform
phyllopodiform
adj
(zoology) Resembling the Phyllopoda.
pseudofaithfully
pseudofatherly
pseudofeverishly
shadfly
shadfly
noun
mayfly
shamefacedly
shamefacedly
adv
In a shamefaced manner.
sheepfacedly
softheadedly
softheadedly
adv
In a softheaded manner.
softheartedly
softheartedly
adv
In a softhearted manner; with sentimental tenderness.
standoffishly
standoffishly
adv
In a standoffish way.
straightforwardly
straightforwardly
adv
In a straightforward manner.
sulfhydrate
sulfhydrate
noun
Synonym of hydrosulfide
sulfhydric
sulfhydric
adj
(chemistry) Relating to hydrogen sulfide.
sulfhydryl
sulfhydryl
noun
(organic chemistry) The univalent radical -SH that is the sulfur analogue of hydroxyl and constitutes the thiol group