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The form viruses appears in the official Scrabble words list, [12] but neither viri nor virii does. In life sciences, "viruses" generally refers to several distinct strains or species of virus. "Virus" is used in the original way as an uncountable mass noun, e.g. "a vial of virus". Individual, physical particles are called "virions" or "virus ...
With irregular plurals whose usage far exceeds the usage of the singular, the common and unastonishing plural titles Bacteria, Algae, and Data are preferred over Bacterium, Alga, and Datum (although some would argue that data is a mass noun and, as such, is already singular).
For example, in Spanish, nouns composed of a verb and its plural object usually have the verb first and noun object last (e.g. the legendary monster chupacabras, literally "sucks-goats", or in a more natural English formation "goatsucker") and the plural form of the object noun is retained in both the singular and plural forms of the compound ...
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. [1] Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. [2] [3] Viruses are found in almost every ecosystem on Earth and are the most numerous type of biological entity.
In English, the most common formation of plural nouns is by adding an -s suffix to the singular noun. (For details and different cases, see English plurals.) Just like in English, noun plurals in French, Spanish, and Portuguese are also typically formed by adding an -s suffix to the lemma form, sometimes combining it with an additional vowel ...
The word bacteria is the plural of the Neo-Latin bacterium, which is the romanisation of the Ancient Greek βακτήριον (baktḗrion), [6] the diminutive of βακτηρία (baktēría), meaning "staff, cane", [7] because the first ones to be discovered were rod-shaped. [8] [9]
Penaloza says that a biological advantage viruses and bacteria have over fungi is that they replicate much faster — enabling them to spread more easily. “It depends on the virus, of course ...
Common endings for masculine and neuter nouns are -ii or -i in the singular and -orum in the plural, and for feminine nouns -ae in the singular and -arum in the plural. The noun may be part of a person's name, often the surname, as in the Tibetan antelope (Pantholops hodgsonii), the shrub Magnolia hodgsonii, or the olive-backed pipit (Anthus ...