onto
[ on-too, awn-; unstressed on-tuh, awn- ]
/ ˈɒn tu, ˈɔn-; unstressed ˈɒn tə, ˈɔn- /
preposition
adjective
Also surjective. Mathematics.
pertaining to a function or map from one set to another set, the range of which is the entire second set.
Words nearby onto
ont-,
ont.,
ontarian,
ontario,
ontic,
onto,
onto function,
onto-,
ontogenesis,
ontogenetic,
ontogeny
Definition for onto (2 of 2)
onto-
a combining form meaning “being,” used in the formation of compound words: ontogeny.
Also
especially before a vowel,
ont-.
Origin of onto-
Example sentences from the Web for onto
British Dictionary definitions for onto (1 of 2)
onto
on to
/ (ˈɒntʊ, unstressed ˈɒntə) /
preposition
to a position that is on
step onto the train as it passes
having become aware of (something illicit or secret)
the police are onto us
into contact with
get onto the factory
usage for onto
Onto is now generally accepted as a word in its own right.
On to is still used, however, where
on is considered to be part of the verb:
he moved on to a different town as contrasted with
he jumped onto the stage
British Dictionary definitions for onto (2 of 2)
onto-
combining form
existence or being
ontogeny; ontology
Word Origin for onto-
from Late Greek, from
ōn (stem
ont-) being, present participle of
einai to be
Medical definitions for onto
onto-
pref.
Organism; being:ontogeny.