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Definition of the adjective altricial

What does altricial mean as an attribute of a noun?


  1. (of hatchlings) naked and blind and dependent on parents for food

Alternative definition of the adjective altricial


  1. [zoology] Helpless at birth (of young animals); or having young which are helpless at birth.


Altricial, meaning "requiring nourishment", refers to a pattern of growth and development in organisms which are incapable of moving around on their own soon after hatching or being born. The word is derived from the Latin root alere meaning "to nurse, to rear, or to nourish" and refers to the need for young to be fed and taken care of for a long duration. Species whose young are immediately or quickly mobile are known as precocial.

Printed dictionaries and other books with definitions for Altricial

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Google previewEncyclopedia of Behavioral Neuroscience, Three-Volume Set, 1- 3 (2010)

Mammalian neonates are subdivided into three classes: altricial (immature), precocial (fully developed), and intermediate species. These primary parameters interact with other factors, including postnatal growth rate, litter size, and social ...

Google previewEncyclopedia of Dinosaurs (1997)

by Philip J. Currie, Kevin Padian

Juvenile altricial to precocial. Megapode fowl build and maintain fermenting vegetation mound nest incubators. Juveniles precocial and independent upon hatching. Ratites (living and recent)—Reproductive output low in island examples, high ...

Google previewEncyclopedia of Climate and Weather (2011)

by Dr. Stephen H. Schneider, Dr. Michael Mastrandrea, Terry L. Root

Altricial young hatch with closed eyes and just a few feathers and are highly dependent on parents for both food and protection from the elements for at least a few weeks after hatching. In contrast, precocial young can run or swim quickly after ...

Google previewDictionary of Psychology (2014)

by Mike Cardwell

altricial species: animal species that are relatively helpless at birth and therefore need substantial parental ...

Google previewDictionary of Biological Psychology (2003)

by Philip Winn

altricial. mammals. see maternal behaviour. altruism. Modern, intimate studies of animal behaviour have repeatedly shown that nature is not always 'red in tooth and claw'. Individuals help each other: to avoid predation (sounding alarms, ...

Google previewThe American Heritage Science Dictionary (2005)

by American Heritage Dictionary

altricial (al-trish'al) Born or hatched in a helpless condition requiring prolonged parental care, as by being naked, blind, or unable to move about. Nesting birds, monotremes, marsupials, and carnivores have altricial ...

Google previewDictionary of Zoo Biology and Animal Management (2013)

by Paul A. Rees

altricial ...

Google previewThe Cambridge Encyclopedia of Human Growth and Development (1998)

by Stanley J. Ulijaszek, Francis E. Johnston, Michael A. Preece

Among eutherians, there are striking differences between altricial species, which are born at a relatively early stage of development, at which they are helpless, and precocial species which are born better developed and more competent.

Google previewThe Century dictionary (1906)

altricial. altricial. (al-tris'ial),. a. [<. Altrices.] Being. one of or belonging to the Altrices; having the nature of Altrices ; heterophagous. Alto-rilievo. Hermes, Eurydice, and Orpheus : in the Museo Nazionale, Naples. altropathy (al-trop'a-thi) , n.

Online dictionaries and encyclopedias with entries for Altricial

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Video about Altricial

Altricial Meaning

Video shows what altricial means. Helpless at birth (of young animals), or having young which are helpless at birth.. Altricial Meaning. How to pronounce ...

Scrabble value of A1L1T1R1I1C3I1A1L1

The value of this 9-letter word is 11 points, but it's not an accepted word in the Official Scrabble Players Dictionary.

Anagrams of ALTRICIAL

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