examples:
era cristiana
the time period beginning with the supposed year of Christ's birth
edad del bronce
(archeology) a period between the Stone and Iron Ages, characterized by the manufacture and use of bronze tools and weapons
edad del hierro
(archeology) the period following the Bronze Age; characterized by rapid spread of iron tools and weapons
edad de piedra
(archeology) the earliest known period of human culture, characterized by the use of stone implements
paleolítico
second part of the Stone Age beginning about 750,00 to 500,000 years BC and lasting until the end of the last ice age about 8,500 years BC
mesolítico
middle part of the Stone Age beginning about 15,000 years ago
neolítico
latest part of the Stone Age beginning about 10,000 BC in the Middle East (but later elsewhere)
edad media
the period of history between classical antiquity and the Italian Renaissance
renacimiento
the period of European history at the close of the Middle Ages and the rise of the modern world; a cultural rebirth from the 14th through the middle of the 17th centuries
types:
probabilidad
a measure of how likely it is that some event will occur; a number expressing the ratio of favorable cases to the whole number of cases possible
octanaje
a measure of the antiknock properties of gasoline
volumen
the amount of 3-dimensional space occupied by an object
intervalo
a definite length of time marked off by two instants
temperatura
the degree of hotness or coldness of a body or environment (corresponding to its molecular activity)
longitud
the linear extent in space from one end to the other; the longest dimension of something that is fixed in place
mayoría relativa,
pluralidad
(in an election with more than 2 options) the number of votes for the candidate or party receiving the greatest number (but less that half of the votes)
número
a concept of quantity involving zero and units
resma
a quantity of paper; 480 or 500 sheets; one ream equals 20 quires
paso
the distance covered by a step
dosificación,
dosis
the quantity of an active agent (substance or radiation) taken in or absorbed at any one time
día
time for Earth to make a complete rotation on its axis
día sideral
the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day
plazo
the end of gestation or point at which birth is imminent
hora
a period of time equal to 1/24th of a day
minuto
a unit of time equal to 60 seconds or 1/60th of an hour
microsegundo
one millionth (10^-6) of a second; one thousandth of a millisecond
set
a unit of play in tennis or squash
interrupción,
pausa
a time interval during which there is a temporary cessation of something
latencia
the time that elapses between a stimulus and the response to it
eternidad
a seemingly endless time interval (waiting)
ciclo
an interval during which a recurring sequence of events occurs