H
A grade of pencil with lead that makes darker marks than a pencil of grade 2HA grade of pencil with lead that makes darker marks than a pencil of grade 2H; a pencil with hard lead.
» The chemical formula for water is H₂O.
Die chemische Formel für Wasser ist H₂O.
Химическая формула воды - H₂O.
Хімічна формула води — H₂O.
Meaning
2 senses(UK, uncountable, usually)A grade of pencil with lead that makes darker marks than a pencil of grade 2H; a pencil with hard lead.
A grade of pencil with lead that makes darker marks than a pencil of grade 2H; a pencil with hard lead.
(UK, uncountable, usually)A pencil of grade H.
- the 8th letter of the Roman alphabet
- the 8th letter of the Roman alphabet
- the constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second
- a unit of inductance in which an induced electromotive force of one volt is produced when the current is varied at the rate of one ampere per second
Examples
61 sentencesThe chemical formula for water is H₂O.
Хімічна формула води — H₂O.
ruХимическая формула воды - H₂O.
deDie chemische Formel für Wasser ist H₂O.
In towns, speed is limited to 50 km/h.
У містах швидкість обмежена до 50 км/год.
ruВ городах скорость ограничена до 50 км/ч.
deIn den Städten ist die Geschwindigkeit auf 50 km/h beschränkt.
The chemical formula for water is H-O-H.
Хімічна формула води - H-O-H.
ruХимическая формула воды - H-O-H.
The chemical symbol H indicates hydrogen.
Хімічний символ «H» позначає водень.
ruХимический символ H обозначает водород.
deDas chemische Symbol H steht für Wasserstoff.
The mouth breathes 'ha-h ha-h'.
Origin
From Latin H, from Ancient Greek Η (Ē).From Latin H, from Ancient Greek Η (Ē).
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Forms
plural: Hs| Singular | H |
|---|
uncountable
Synonyms
7 synonyms- the constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second:Planck-ap-s constant
- a unit of inductance in which an induced electromotive force of one volt is produced when the current is varied at the rate of one ampere per second:henry
- a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe:hydrogenatomic number 1
- (thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure:heat contenttotal heatenthalpy
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable